@article{MMNP_2014_9_4_a2,
     author = {A.O. Belyakov and V.M. Veliov},
     title = {Constant {Versus} {Periodic} {Fishing:} {Age} {Structured} {Optimal} {Control} {Approach}},
     journal = {Mathematical modelling of natural phenomena},
     pages = {20--37},
     publisher = {mathdoc},
     volume = {9},
     number = {4},
     year = {2014},
     doi = {10.1051/mmnp/20149403},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.1051/mmnp/20149403/}
}