%0 Journal Article %A Ya. Il'yasov %T On finding bifurcations for nonvariational elliptic systems by the extended quotients method %J Zapiski Nauchnykh Seminarov POMI %D 2024 %P 140-155 %V 536 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_2024_536_a7/ %G en %F ZNSL_2024_536_a7