@article{Feichtinger2004,
author = {Feichtinger, G. and Prskawetz, A. and Veliov, V.M.},
title= {Age structured optimal control in population economics},
year = {2004},
doi = {10.1016/j.tpb.2003.07.006},
journal = {Theoretical Population Biology},
volume = {65},
number = {4},
pages = {373--387},
}