00929nas 2200337- 450 991036761420332120211101213019.01584-3289(OCoLC)1135605311(CKB)4100000010105876(CONSER)--2020205113(EXLCZ)99410000001010587620190718a199u9999 --- aengurunu||||||||txtrdacontentcrdamediacrrdacarrierGeneral mathematicsWarsaw, Poland :De Gruyter PolandRefereed/Peer-reviewedMathematicsPeriodicalsMathematicsfast(OCoLC)fst01012163Electronic journals.Periodicals.fastMathematicsMathematics.JOURNAL9910367614203321General mathematics1898600UNINA