@article{10_1051_mmnp_20149408,
     author = {N. Kato},
     title = {Linear {Size-structured} {Population} {Models} with {Spacial} {Diffusion} and {Optimal} {Harvesting} {Problems}},
     journal = {Mathematical modelling of natural phenomena},
     pages = {122--130},
     publisher = {mathdoc},
     volume = {9},
     number = {4},
     year = {2014},
     doi = {10.1051/mmnp/20149408},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.1051/mmnp/20149408/}
}