Дек 20 Love0 The theory of consumer demand: the function of expenses on satisfaction the needs of biogenic and psychogenic nature Tatyana A. Kozeletskaya, Elena A. German, Alexander G. Dmitriev 2012 № 4 Abstract: On the basis of the hypothesis of the existence of marginal costs to meet the needs of biogenic nature, relevant to their complete satisfaction derived differential equations costs. Their...Читать далее