%0 Journal Article %T Cumulative demand inventory system with one by one parallel supply times %A K. Usha %A N. Nithyapriya %A R. Ramanarayanan %J International Journal of Contemporary Mathematical Sciences %D 2012 %I %U http://www.m-hikari.com/ijcms/ijcms-2012/1-4-2012/nithyapriyaIJCMS1-4-2012.pdf