%0 Journal Article %A N. M. Bogoliubov %A C. Malyshev %T Combinatorial aspects of correlation functions of the $XXZ$ Heisenberg chain in limiting cases %J Zapiski Nauchnykh Seminarov POMI %D 2015 %P 15-34 %V 437 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_2015_437_a1/ %G en %F ZNSL_2015_437_a1