TY - JOUR AU - L. N. Krivonosov AU - V. A. Lukyanov TI - (Anti) self-dual Einstein metrics of zero signature, their Petrov classes and connection with Kahler and para-Kahler structures JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 2022 SP - 39 EP - 53 IS - 9 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_2022_9_a3/ LA - ru ID - IVM_2022_9_a3 ER -