@article{1237b2b2debd4364af88c41fc32290ee,
title = "Cluster perturbation theory for spin Hamiltonians",
keywords = "Cluster perturbation theory, Singlet magnetics, Spin chain",
author = "Ovchinnikov, {A. S.} and Bostrem, {I. G.} and Sinitsyn, {Vl E.}",
year = "2010",
month = may,
day = "14",
doi = "10.1007/s11232-010-0013-7",
language = "English",
volume = "162",
pages = "179--187",
journal = "Theoretical and Mathematical Physics",
issn = "0040-5779",
publisher = "Maik Nauka-Interperiodica Publishing",
number = "2",
}