References

 
• Bartel N., Sieber W., Wielebinski R., 1978, A&A 68, 361 NASA ADS  
• Foster R.S., Fairhead L., Backer D.C., 1991, ApJ 378, 687 NASA ADS  
• Gil J.A., Jessner A., Kijak J., et al., 1994, A&A 282, 45 NASA ADS  
• Hoensbroech A. von, Xilouris K.M., 1997, A&AS 126, 121 NASA ADS  
• Hoensbroech A. von, Kijak J., Krawczyk A., 1998, A&A 334, 571 NASA ADS  
• Izvekova V.A., Kuzmin A.D., Malofeev V.M., Shitov Yu.P., 1981, ASS 78, 45  
• Kijak J., Kramer M., Wielebinski R., Jessner A., 1998, A&AS 127, 153 NASA ADS  
• Kramer M., 1995, Ph.D. Thesis, High Frequency Observations of Pulsars, University of Bonn  
• Kramer M., Xilouris K.M., Jessner A., et al., 1996, A&A 306, 867 NASA ADS  
• Kramer M., Jessner A., Doroshenko O., Wielebinski R., 1997, ApJ 488, 364 NASA ADS  
• Kramer M., Xilouris K.M., Lorimer D.R., et al., 1998, ApJ 501, 270 NASA ADS  
• Kramer M., Lange C., Lorimer D.R., et al., 1999, ApJ 526, 957 NASA ADS  
• Kuzmin A.D., Losovsky B.Ya., 2000, ASP Conf. Ser. 202, Kramer M., Wex N., Wielebinski R. (eds.)  
• Lorimer D.R., Yates J.A., Lyne A.G., Gould D.M., 1995, MNRAS 273, 411 NASA ADS  
• Lorimer D.R., Jessner A., Seiradakis J.H., et al., 1998, A&AS 128, 541 NASA ADS  
• Malofeev V.M., 1996, ASP Conf. Ser. 105, Johnson S., Walker M.A., Bailes M. (eds.)  
• Malofeev V.M., Gil J.A., Jessner A., et al., 1994, A&A 285, 201 NASA ADS  
• Malofeev V.M., Shishov V.I., Sieber W., et al., 1996, A&A 308, 180 NASA ADS  
• Malofeev V.M., Malov O., Shchegoleva N., 2000, Astron. Reports 44, 436 NASA ADS  
• McLean A.I.O., 1973, MNRAS 165, 133 NASA ADS  
• Moffet D.A., Hankins T.H., 1999, astro-ph/9904421  
• Morris D., Kramer M., Thum C., et al., 1997, A&A 322L, 17 NASA ADS  
• Nelder J.A., Mead R., 1965, Comp. J. 7, 308  
• Ommen van T.D., D'Alessandro F.D., Hamilton P.A., McCulloch P.M., 1997, MNRAS 287, 307 NASA ADS  
• Press W.H., Teukolsky S.A., Vetterling W.T., Flannery B.P., 1996, Numerical Recipes in C. Cambridge University Press  
• Robinson B.J., Cooper B.F.C., Gardner F.F., Wielebinski R., Landecker T.L., 1968, Nat 218, 1143  
• Seiradakis J.H., Gil J.A., Graham D.A., et al., 1995, A&AS 111, 205 NASA ADS  
• Sieber W., 1973, A&A 28, 237 NASA ADS  
• Sieber W., Reinecke R., Wielebinski R., 1975, A&A 38, 169 NASA ADS  
• Sieber W., Wielebinski R., 1987, A&A 177, 342 NASA ADS  
• Slee O.B., Alurkar S.K., Bobra A.D., 1986, Aust. J. Phys. 39, 103 NASA ADS  
• Stinebring D.R., Condon J.J., 1990, ApJ 352, 207 NASA ADS  
• Thorsett S.E., 1991, ApJ 377, 263 NASA ADS  
• Toscano M., Bailes M., Manchester R.N., Sandhu J.S., 1998, ApJ 506, 863 NASA ADS  
• Wielebinski R., Jessner A., Kramer M., Gil J.A., 1993, A&A 272, l13 NASA ADS  
• Xilouris K.M., Kramer M, Jessner A., Wielebinski R., Timofeev M., 1996, A&A 309, 481 NASA ADS