By Ivasyshen S.   Pasichnyk H.   in Journal of Mathematical Sciences

ISSN:1072-3374|176|4|505-514

Springer Publishing Company ‎(2011)‎

Access to resources Favorite 12.741779

By Ivasyshen S.D.   Pasichnyk H.S.   in Ukrainian Mathematical Journal

ISSN:0041-5995|52|11|1691-1705

Springer Publishing Company ‎(2000)‎

Access to resources Favorite 2.6835647