@article{AL_2007_46_2_a2,
     author = {V. L. Selivanov},
     title = {The quotient algebra of labeled forests modulo $h$-equivalence},
     journal = {Algebra i logika},
     pages = {217--243},
     publisher = {mathdoc},
     volume = {46},
     number = {2},
     year = {2007},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_2007_46_2_a2/}
}