ARENS-MICHAEL ENVELOPES, HOMOLOGICAL EPIMORPHISMS, AND RELATIVELY QUASIFREE ALGEBRAS СтатьяPirkovskiĭ A.Yu.Trudy Moskovskogo Matematicheskogo Obshchestva. 2008.
ON THE FREDHOLM AND UNIQUE SOLVABILITY OF NONLOCAL ELLIPTIC PROBLEMS IN MULTIDIMENSIONAL DOMAINS СтатьяGurevich P.L., Skubachevskiĭ A.L.Trudy Moskovskogo Matematicheskogo Obshchestva. 2007.