Multiband optical observations of the old PSR B0950+08S. V. Zharikov, Yu. A. Shibanov, R. E. Mennickent, V. N. Komarova, A. B. Koptsevich and G. H. TovmassianA&A, 417 3 (2004) 1017-1030DOI: https://doi.org/10.1051/0004-6361:20034230
