%0 Journal Article %A Nakagawa, T. %T Optimum preventive maintenance and repair limit policies maximizing the expected earning rate %J RAIRO. Operations research %D 1977 %P 103-108 %V 11 %N 1 %I EDP-Sciences %U https://www.numdam.org/item/RO_1977__11_1_103_0/ %G en %F RO_1977__11_1_103_0