References

• Abt H.A., 1979, ApJ 230, 485 NASA ADS
• Abt H.A., Cardona O., 1983, ApJ 272, 182 NASA ADS
• Bidelman W.P., MacConnell D.J., 1973, AJ 78, 687 NASA ADS
• Brandi E., Clariá J.J., 1973, A&AS 12, 79 NASA ADS
• Bohlender D.A., Landstreet J.D., Thompson I.B., 1993, A&A 269, 355 NASA ADS
• Buscombe W., 1980, MK Spectral Classifications 4th General Catalogue, Evanston
• Buscombe W., Morris P.M., 1958, MNRAS 118, 609 NASA ADS
• Catalano F.A., Renson P., Leone F., 1991, A&AS 87, 59 NASA ADS
• Catalano F.A., Leone F., 1993, A&AS 97, 501 NASA ADS
• Curchod A., Hauck B., 1979, A&AS 38, 449 NASA ADS
• Feinstein A., 1966, PASP 78, 301 NASA ADS
• Hauck B., 1974, A&A 32, 447 NASA ADS
• Hauck B., Mermilliod M., 1980, A&AS 40, 1 NASA ADS
• Hauck B., North P., 1982, A&A 114, 23 NASA ADS
• Hauck B., North P., 1993, A&A 269, 403 NASA ADS
• Hiltner W.A., Garrison R.F., Schild R.E., 1969, ApJ 157, 313 NASA ADS
• Hoffleit D., Jaschek C., 1982, The Bright Star Catalogue 4th Rev. Ed., Yale Univ. Obs., New Haven
• Houk N., 1978, Michigan Catalogue of Two-Dimensional Spectral Types for the HD Stars Vol. 2, Univ. of Michigan, Ann Arbor
• Houk N., 1982, Michigan Catalogue of Two-Dimensional Spectral Types for the HD Stars Vol. 3, Univ. of Michigan, Ann Arbor
• Houk N., Cowley A.P., 1975, University of Michigan Catalogue of Two-Dimensional Spectral Types for the HD Stars Vol. 1, Univ. of Michigan, Ann Arbor
• Houk N., Smith-Moore M., 1988, Michigan Catalogue of Two-Dimensional Spectral Types for the HD Stars Vol. 4, Univ. of Michigan, Ann Arbor
• Jaschek M., Jaschek C., 1959, PASP 71, 48 NASA ADS
• Jaschek M., Jaschek C., 1960, PASP 72, 500 NASA ADS
• Levato H., Malaroda S., 1975, PASP 87, 823 NASA ADS
• Lucke P.B., 1978, A&A 64, 367 NASA ADS
• Maitzen H.M., 1976, A&A 51, 223 NASA ADS
• Maitzen H.M., 1980, A&A 84, L9 NASA ADS
• Maitzen H.M., 1981, A&A 95, 213 NASA ADS
• Maitzen H.M., 1984, A&A 138, 493 NASA ADS
• Maitzen H.M., Catalano F.A., 1986, A&AS 66, 37 NASA ADS
• Maitzen H.M., Lebzelter Th., 1993, Inf. Bull. Var. Stars No. 3856
• Maitzen H.M., Pavlovski K., 1987, A&A 178, 313 NASA ADS
• Maitzen H.M., Pavlovski K., 1989, A&AS 81, 335 NASA ADS
• Maitzen H.M., Pavlovski K., 1997 (in preparation)
• Maitzen H.M., Vogt N., 1983, A&A 123, 48 NASA ADS
• Nissen P.E., 1974, A&A 36, 57 NASA ADS
• North P., 1993, in: Peculiar Versus Normal Phenomena in A-Type and Related Stars, Dworetsky M.M., Castelli F. and Faraggiana R. (eds.), ASP Conf. Ser. 44, p. 577
• Osawa K., 1965, Ann. Tokyo Astron. Obs. Ser. 2, 9, 123
• Rufener F., 1988, Catalogue of Stars measured in the Geneva Observatory Photometric System (4th ed.), Obs. de Genève, Sauverny
• Waelkens C., 1985, A&AS 61, 127 NASA ADS
• Wolff S.C., 1968, PASP 80, 281
• Young A., Martin A.E., 1973, ApJ 181, 805 NASA ADS