BÀI TOÁN KHÔNG CHỈNH

Andrei Nikolaevitch Tikhonov, Vasilij Jakovlevich Arsénine (1976). Methodes de resolution de problèmes mal–poseùs.

J. Baumeister (1987). Stable solution of inverse problems.

C. W Groetsch (1984). The theory of Tikhonov regularization for Fredholm equations of the firts kind.