Quizá quiso decir: The Springer Series on Demographic Methods and Population Analysis, 1389-6784 ; 16 The Springer Series On Demographic Methods And Population Analysis, 1389-6784 ; 17 Demographic Methods and Population Analysis, 1389-6784 ; 18 The Springer Series on Demographic Methods and Population Analysis, 1389-6784 ; 19 Demographic Methods and Population Analysis, 1389-6784 ; 20 The Springer Series On Demographic Methods and Population Analysis, 1389-6784 ; 21 The Springer Series on Demographic Methods and Population Analysis, 1389-6784 ; 25 The Springer Series on Demographic Methods and Population Analysis, 1389-6784 ; 22 The Springer Series on Demographic Methods and Population Analysis, 1389-6784 ; 23 Lecture Notes in Computer Science, 0302-9743 ; 6784 The Springer Series on Demographic Methods and Population Analysis, 1389-6784 ; 24 The Springer Series on Demographic Methods and Population Analysis, 1389-6784 ; 13 The Springer Series on Demographic Methods and Population Analysis, 1389-6784 ; 26 The Springer Series on Demographic Methods and Population Analysis, 1389-6784 ; 27 The Springer Series on Demographic Methods and Population Analysis, 1389-6784 ; 32 The Springer Series on Demographic Methods and Population Analysis, 1389-6784 ; 31 The Springer Series on Demographic Methods and Population Analysis, 1389-6784 ; 29 The Springer Series on Demographic Methods and Population Analysis, 1389-6784 ; 28 The Springer Series on Demographic Methods and Population Analysis, 1389-6784 ; 30 The Springer Series on Demographic Methods and Population Analysis, 1389-6784 ; 37