Isomeric yield ratios and mean angular momenta of photofission fragments of 235U, 237 Np and 239Pu - I. N. Vishnevskij; V. A. Zheltonozhskij; V. A. Pljujko; A. N. Savrasov; A. N. Gorbachenko; O. I. Davidovskaja; E. P. Rovenskikh (Nuclear physics and atomic energy, 2015)