@article{AL_2002_41_4_a2,
     author = {S. I. Mardaev},
     title = {Definability of {Least} {Fixed} {Points}},
     journal = {Algebra i logika},
     pages = {429--458},
     publisher = {mathdoc},
     volume = {41},
     number = {4},
     year = {2002},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_2002_41_4_a2/}
}