References

• Abt H.A., 1953, PASP 65, 274 NASA ADS
• Abt H.A., Conti P.S., Deutsch A.J., Wallerstein G., 1968, ApJ 153, 177 NASA ADS
• Adams W.S., Joy A.H., Humason M.L., Brayton A.M., 1935, ApJ 81, 187
• Adelman S.J., Dukes R.J. Jr., Pyper D.M., 1992, AJ 104, 314 NASA ADS
• Babcock H.W., 1947, ApJ 105, 105 NASA ADS
• Babcock H.W., 1951, ApJ 114, 1 NASA ADS
• Babcock H.W., 1958a, ApJS 3, 141 NASA ADS
• Babcock H.W., 1958b, ApJ 128, 228 NASA ADS
• Bagnulo S., Landi degl'Innocenti E., Landolfi M., Leroj J.L., 1995, A&A 295, 459 NASA ADS
• Blackwell D.E., Shallis M.J., 1977, MNRAS 180, 177 NASA ADS
• Blackwell D.E., Shallis M.J., Selby M.J., 1979, MNRAS 188, 847 NASA ADS
• Bohlender D.A., Landstreet J.D., Thompson I.B., 1993, A&A 269, 355 NASA ADS
• Bonsack W.K., 1974, PASP 86, 408 NASA ADS
• Borra E.F., 1980, ApJ 235, 911 NASA ADS
• Borra E.F., Landstreet J.D., 1975, PASP 87, 961 NASA ADS
• Borra E.F., Landstreet J.D., 1980, ApJS 42, 421 NASA ADS
• Bouchet P., 1989, Infrared Photometry, E.S.O. Operating Manual No. 11
• Bouchet P., Manfroid J., Schmider F.-X., 1991, A&AS 91, 409 NASA ADS
• Bowen I.S., 1952, Mount Wilson and Palomar Observatories Ann. Rep., Carnegie Inst. of Washington Yearbook 51, 11
• Brandi E., Ziznovský J., 1990, Mitt. Karl-Schwarzschild Obs. Tautenburg Nr. 129, p. 9
• Buchholz M., Maitzen H.M., 1979, A&A 73, 222 NASA ADS
• Catalano F.A., Leone F., 1990, A&AS 83, 491 NASA ADS
• Catalano F.A., Leone F., 1994, A&AS 108, 595 NASA ADS
• Catalano F.A., Renson P., 1984, A&AS 55, 371 NASA ADS
• Catalano F.A., Renson P., 1988, A&AS 72, 1 NASA ADS
• Catalano F.A., Renson P., 1997, A&AS 121, 57 NASA ADS
• Catalano F.A., Kroll R., Leone F., 1991, A&A 248, 179 (CKL) NASA ADS
• Catalano F.A., Kroll R., Leone F., 1992, A&A 263, 203 NASA ADS
• Catalano F.A., Renson P., Leone F., 1991, A&AS 87, 59 NASA ADS
• Catalano F.A., Renson P., Leone F., 1993, A&AS 98, 269 NASA ADS
• Chugainov P.F., 1961, Perem. Zvezdy 13, 255
• Cowley C.R., Cowley A.P., Aikman G.C.L., Crosswhite H.M., 1977, ApJ 216, 37 NASA ADS
• Deul E.R., van Genderen A.M., 1983, A&A 118, 289 NASA ADS
• Deutsch A.J., 1947, ApJ 105, 283 NASA ADS
• Deutsch A.J., 1958, Harmonic analysis of the periodic spectrum variables. In: Lehnert B. (ed.), Proc. I.A.U. Symp. 6, Electromagnetic Phenomena in Cosmical Physics. Cambridge University Press, Cambridge, p. 209
• Gjellestad G., Babcock H.W., 1953, ApJ 117, 12 NASA ADS
• Glagolevskii Yu.V., Bychkov V.D., Iliev I.K., Romanyuk I.I., Chunakova N.M., 1982, Pis'ma Astron. Zh. 8, 26
• Glass I.S., 1982, Mon. Not. Astron. Soc. South Africa 41, 117 NASA ADS
• Heck A., Manfroid J., Renson P., 1976, A&AS 25, 143 NASA ADS
• Heck A., Mathys G., Manfroid J., 1987, A&AS 70, 33 NASA ADS
• Hempelmann A., 1981, Astron. Nachr. 302, 47 NASA ADS
• Hensberge H., de Loore C., 1974, A&A 37, 367 NASA ADS
• Hensberge H., Van Rensbergen W., 1986, in: Upper Main Sequence Stars with Anomalous Abundances, Cowley C.R. et al. (eds.) I.A.U. Coll. 90, p. 151
• Hensberge H., Maitzen H.M., Catalano F.A., Schneider H., Pavlovski K., Weiss W.W., 1986, A&A 155, 314 NASA ADS
• Hockey M.S., 1971, MNRAS 152, 97 NASA ADS
• Hoffleit D., Jaschek C., 1982, The Bright Star Catalogue, 4 revised edition, Yale University Observatory
• Hyland A.R., Mould J.R., Robinson G., Thomas J.A., 1975, PASP 87, 439 NASA ADS
• Jarzebowski T., 1960, Acta Astron. 10, 31 NASA ADS
• Kroll R., 1987, A&A 181, 315 NASA ADS
• Kroll R., Schneider H., Catalano F.A., Voigt H.H., 1987, A&AS 67, 195 NASA ADS
• Kurtz D.W., 1978, Inf. Bull. Var. Stars 1436
• Kurtz D.W., 1980, MNRAS 191, 115 NASA ADS
• Kurtz D.W., 1981, MNRAS 196, 61 NASA ADS
• Kurtz D.W., 1982, MNRAS 200, 807 NASA ADS
• Kurtz D.W., Marang F., 1987, MNRAS 229, 285 NASA ADS
• Kurtz D.W., Marang F., 1988, MNRAS 231, 1039 NASA ADS
• Kurtz D.W., Wegner G., 1979, ApJ 232, 510 NASA ADS
• Kurtz D.W., Kanaan A., Martinez P., Tripe P., 1992, MNRAS 255, 289 NASA ADS
• Leckrone D.S., 1976, Properties of Ap stars in the ultraviolet. In: Weiss W.W., Jenkner H., Wood H.J. (eds.) Proc I.A.U. Coll. 32, Physics of Ap Stars, Universitätssternwarte Wien, p. 465
• Leckrone D.S., Fowler J.W., Adelman S.J., 1974, A&A 32, 237 NASA ADS
• Leone F., Catalano F.A., 1991, A&A 242, 199 NASA ADS
• Leroy J.C., 1995, A&AS 114, 79 NASA ADS
• Maitzen H.M., 1973, A&AS 11, 327 NASA ADS
• Maitzen H.M., Albrecht R., 1975, A&A 44, 405 NASA ADS
• Maitzen H.M., Vogt N., 1983, A&A 123, 48 NASA ADS
• Maitzen H.M., Albrecht R., Heck A., 1978, A&A 62, 199 NASA ADS
• Maitzen H.M., Breysacher J., Garnier R., Sterken C., Vogt N., 1974, A&A 32, 21 NASA ADS
• Maitzen H.M., Weiss W.W., Wood H.J., 1980, A&A 81, 323 NASA ADS
• Manfroid J., Mathys G., 1985, A&AS 59, 429 NASA ADS
• Manfroid J., Renson P., 1983, A&AS 51, 267 NASA ADS
• Martinez P., Kurtz D.W., 1990, MNRAS 242, 636 NASA ADS
• Mathys G., 1991, A&AS 89, 121 NASA ADS
• Mathys G., 1994, A&AS 108, 547 NASA ADS
• Mathys G., Hubrig S., 1997, A&A (in press, ESO Sci. Preprint No. 1203)
• Mathys G., Hubrig S., Landstreet J.D., Lanz T., Manfroid J., 1997, A&AS 123, 353 NASA ADS
• Mathys G., Manfroid J., 1985, A&AS 60, 17 NASA ADS
• Morgan W.W., 1932, ApJ 75, 46 NASA ADS
• Morrison N.D., Wolff S.C., 1971, PASP 83, 474 NASA ADS
• Muthsam H., Weiss W.W., 1978, Infrared radii of  CVn and  And. In: Weiss, W.W. & Kreidl, T.J. (eds.) Proc. Workshop Vienna October 9-10, 1978, Ap-Stars in the Infrared, p. 37
• North P., 1984, A&AS 55, 259 NASA ADS
• North P., Adelman S.J., 1995, A&AS 111, 41 NASA ADS
• Panov K., Schöneich W., 1975, Changes of the Periods in Ap Stars. In: Aslanov I.A. (ed.) Proc. Baku Conference, Magnetic Ap Stars, p. 16
• Pilachowski C.A., Bonsack W.K., 1975, PASP 87, 221 NASA ADS
• Pilachowski C.A., Bonsack W.K., Wolff S.C., 1974, A&A 37, 275 NASA ADS
• Preston G.W., 1969, ApJ 158, 243 NASA ADS
• Preston G.W., 1970, ApJ 160, 10596
• Preston G.W., 1972, ApJ 175, 456
• Preston G.W., 1974, ARA&A 12, 257 NASA ADS
• Preston G.W., Pyper D.M., 1965, ApJ 142, 983 NASA ADS
• Przybylski A., 1961, Nat 189, 739
• Przybylski A., 1963, Acta Astron. 13, 217
• Przybylski A., 1966, Nat 210, 20
• Przybylski A., 1977a, MNRAS 178, 735 NASA ADS
• Przybylski A., 1977b, Proc. Astr. Soc. Australia 3, 143
• Rakosch K.D., 1962, Lowell Obs. Bull. 5, 227
• Rakosch K.D., Fiedler W., 1978, A&AS 31, 83 NASA ADS
• Renson P., Maitzen H.M., 1978, A&A 65, 299 NASA ADS
• Renson P., Manfroid J., 1977, Inf. Bull. Var. Stars 1280
• Renson P., Manfroid J., 1978, A&AS 34, 445 NASA ADS
• Renson P., Manfroid J., 1980, Inf. Bull. Var. Stars 1755
• Renson P., Gerbaldi M., Catalano F.A., 1991, A&AS 89, 429 NASA ADS
• Renson P., Manfroid J., Heck A., 1976, A&A, 23, 413
• Renson P., Manfroid J., Heck A., Mathys G., 1984, A&A 131, 63 NASA ADS
• Ryabchicova T.A., Pavlova V.M., Davydova E.S., Piskunov N.E., 1996, Astron. Lett. 22, 822
• Schöneich W., Hildebrandt G., Furtig W., 1976, Astron. Nachr. 297, 39 NASA ADS
• Shallis M.J., Blackwell D.E., 1979, A&A 79, 48 NASA ADS
• Stepien K., 1968, ApJ 154, 945 NASA ADS
• Stibbs D.W.N., 1950, MNRAS 110, 395 NASA ADS
• Thompson I.B., 1983, MNRAS 205, 43P
• van den Heuvel E.P.J., 1971, A&A 11, 461 NASA ADS
• van Genderen A.M., 1971, A&A 14, 48 NASA ADS
• van Dijk W., Kerssies A. Hammerschlag-Hensberge G., Wesselius P.R., 1978, A&A 66, 187 NASA ADS
• Wegner G., 1979, Lect. Notes Phys. 125, 467
• Wegner G., Petford A.D., 1974, MNRAS 168, 557 NASA ADS
• Wegner G., Cummings D.J., Byrne P.B., Stickland D.J., 1983, ApJ 272, 646 NASA ADS
• Winzer, J.E., 1974, Thesis, University of Toronto
• Wolff S.C., 1974, PASP 86, 179 NASA ADS
• Wolff S.C., 1975, ApJ 202, 127 NASA ADS
• Wolff S.C., 1978, PASP 90, 412 NASA ADS
• Wolff S.C., Bonsack W.K., 1972, ApJ 176, 425 NASA ADS
• Wolff S.C., Hagen W., 1976, PASP 88, 119 NASA ADS
• Wolff S.C., Morrison N.D., 1975, PASP 87, 231 NASA ADS
• Wolff S.C., Wolff R.J., 1971, AJ 76, 422 NASA ADS
• Wolff S.C., Wolff R.J., 1972, ApJ 176, 433 NASA ADS