@article{GDZPPN002431785,
title = {Structured Populations, Linear Semigrous and Positivity.},
journal = {Mathematische Zeitschrift},
volume = {192},
year = {1986},
pages = {599-618},
zbl = {0595.92009},
url = {http://dml.mathdoc.fr/item/GDZPPN002431785}
}
Heijmans, H.J.A.M. Structured Populations, Linear Semigrous and Positivity.. Mathematische Zeitschrift, Tome 192 (1986) pp. 599-618. http://gdmltest.u-ga.fr/item/GDZPPN002431785/