Optical photometry of the PSR B0656+14 and its neighborhood A. B. Koptsevich, G. G. Pavlov, S. V. Zharikov, V. V. Sokolov, Yu. A. Shibanov and V. G. Kurt A&A, 370 3 (2001) 1004-1016 Published online: 15 May 2001 DOI: 10.1051/0004-6361:20010289