Savin A. Sternin B., “Index of Elliptic Operators For Diffeomorphisms of Manifolds”, J. Noncommutative Geom., 8:3 (2014), 695–734
Jörg Seiler, “Ellipticity in pseudodifferential algebras of Toeplitz type”, Journal of Functional Analysis, 2012
Savin A., Sternin B., “Pseudo differential subspaces and their applications in elliptic theory”, C(star)-Algebras and Elliptic Theory, Trends in Mathematics, 2006, 247–289
Savin A., Sternin B., “The eta invariant and parity conditions”, Adv. Math., 182:2 (2004), 173–203
Anton Savin, Boris Sternin, Aspects of Boundary Problems in Analysis and Geometry, 2004, 170
Savin A., Schulze B.W., Sternin B., “The eta invariant and elliptic operators in subspaces”, Jean Leray '99 Conference Proceedings - the Karlskrona Conference in Honor of Jean Leray, Mathematical Physics Studies, 24, 2003, 373
Savin A., Schulze B.-W., Sternin B., “Elliptic operators in subspaces and the eta invariant”, $K$-Theory, 27:3 (2002), 253–272
Савин А.Ю., Стернин`Б.Ю., “О проблеме гомотопической классификации эллиптических краевых задач”, Докл. РАН, 377:2 (2001), 165–169 ; Savin A.Yu., Sternin B.Yu., “To the problem of homotopy classification of the elliptic boundary value problems”, Dokl. Math., 63:2 (2001), 174–178
Savin A., Schulze B.W., Sternin B., “On the homotopy classification of elliptic boundary value problems”, Partial Differential Equations and Spectral Theory, Operator Theory : Advances and Applications, 126, 2001, 299–305
Anton Savin, Bert-Wolfgang Schulze, Boris Sternin, Partial Differential Equations and Spectral Theory, 2001, 299