@article{AA_2005_17_6_a3,
     author = {L. A. Nazarova and A. V. Roiter and M. N. Smirnova},
     title = {Antimonotone and $P$-exact quadratic forms, and representations of partially ordered sets},
     journal = {Algebra i analiz},
     pages = {161--183},
     publisher = {mathdoc},
     volume = {17},
     number = {6},
     year = {2005},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AA_2005_17_6_a3/}
}