00469naa#a2200169#i#450# EN\RIOR\bibl\1926 20240508082053.3 2308-0191 20140331b2014####ek#y0engy0150####ca RUS RU Elliptic integrals in engineering problems Journal article Moscow Publishing Center RIOR 2014 5 с. Journal article local Anakhaev Koshkinbay Nazirovich riorpub.com