TY - JOUR AU - N. Kato TI - Linear Size-structured Population Models with Spacial Diffusion and Optimal Harvesting Problems JO - Mathematical modelling of natural phenomena PY - 2014 SP - 122 EP - 130 VL - 9 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.1051/mmnp/20149408/ DO - 10.1051/mmnp/20149408 LA - en ID - MMNP_2014_9_4_a7 ER -