@article{FPM_2016_21_2_a1,
     author = {E. I. Bunina and N. V. Yugay},
     title = {Elementary equivalence of endomorphism monoids of almost free $S$-acts},
     journal = {Fundamentalʹna\^a i prikladna\^a matematika},
     pages = {37--52},
     publisher = {mathdoc},
     volume = {21},
     number = {2},
     year = {2016},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FPM_2016_21_2_a1/}
}