@article{ZNSL_2005_325_a1,
     author = {N. M. Bogolyubov},
     title = {$XX0$ {Heisenberg} chain and random walks},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {13--27},
     publisher = {mathdoc},
     volume = {325},
     year = {2005},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2005_325_a1/}
}