@article{SM_1995_186_12_a2,
     author = {P. M. Akhmet'ev},
     title = {Smooth immersion of manifolds of small dimension. {II.~Cobordism} group of critical points of multiparameter families of functions},
     journal = {Sbornik. Mathematics},
     pages = {1727--1751},
     publisher = {mathdoc},
     volume = {186},
     number = {12},
     year = {1995},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1995_186_12_a2/}
}