TY - JOUR AU - K. L. Malyshev TI - Functional integration, zeta regularization and correlators of third components of spins in the $XXO$-Heisenberg JO - Zapiski Nauchnykh Seminarov POMI PY - 2000 SP - 269 EP - 291 VL - 269 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ZNSL_2000_269_a18/ LA - ru ID - ZNSL_2000_269_a18 ER -