By Veliev O.   in Letters in Mathematical Physics

ISSN:0377-9017|103|8|919-925

Springer Publishing Company ‎(2013)‎

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By Yilmaz Bülent   Veliev O. A.   in Studia Scientiarum Mathematicarum Hungarica

ISSN:0081-6906|42|2|153-171

Akademiai Kiado‎(2005)‎

Access to resources Favorite 12.176781