Quizá quiso decir: Lecture Notes in Computational Science and Engineering, 1439-7358 ; 73 BAC ; 739. Serie Estudios Jurídicos no. 73. Colección: Aprendizaje no. 73. Doctrina jurídica no. 731 Astronomers Observing Guides, 1611-7360 Astronomers' Observing Guides, 1611-7360 Springer Monographs in Mathematics, 1439-7382 Springer Monographs in Mathematics, 1439-7382 Springer Series in Statistics, 0172-7397 Springer Series in Statistics, 0172-7397 Springer Monographs in Mathematics, 1439-7382 Springer Monographs in Mathematics, 1439-7382 Springer Series in Statistics, 0172-7397 Springer Series in Statistics, 0172-7397 Springer Series in Statistics, 0172-7397 Springer Series in Statistics, 0172-7397 Springer Series in Statistics, 0172-7397 Springer Series in Statistics, 0172-7397 Springer Series in Statistics, 0172-7397