00330nam a2200109Ia 4500082002100000100003800021245008000059260005000139300000900189500000500198700001700203 a338.901bT539.LD aTintner, Gerhard and Patel, R. C. aLog-normal diffusion process applied to the economic development of Indiab aWashingtonbNational Science Foundationc1963 a14p. a aPatel, R. C.