Lemaréchal, (2001, с. 125—126):
Lemaréchal, Claude (2001). Lagrangian relaxation. У Michael Jünger and Denis Naddef (ред.). Computational combinatorial optimization: Papers from the Spring School held in Schloß Dagstuhl, May 15–19, 2000. Lecture Notes in Computer Science. Т. 2241. Berlin: Springer-Verlag. с. 112—156. doi:10.1007/3-540-45586-8_4. ISBN3-540-42877-1. MR1900016.
Lemaréchal, (2001, с. 125—126):
Lemaréchal, Claude (2001). Lagrangian relaxation. У Michael Jünger and Denis Naddef (ред.). Computational combinatorial optimization: Papers from the Spring School held in Schloß Dagstuhl, May 15–19, 2000. Lecture Notes in Computer Science. Т. 2241. Berlin: Springer-Verlag. с. 112—156. doi:10.1007/3-540-45586-8_4. ISBN3-540-42877-1. MR1900016.