@article{02012574, title = {An equivalence theorem concerning population growth in a variable environment.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {2003}, year = {2003}, pages = {2747-2758}, doi = {10.1155/S0161171203209133}, zbl = {1039.34043}, language = {en}, url = {http://dml.mathdoc.fr/item/02012574} }
Redheffer, Ray; Vance, Richard R. An equivalence theorem concerning population growth in a variable environment.. International Journal of Mathematics and Mathematical Sciences, Tome 2003 (2003) pp. 2747-2758. doi : 10.1155/S0161171203209133. http://gdmltest.u-ga.fr/item/02012574/