@article {13968, title = {The Structure of Technology: Non-jointness and Commodity Augmentation, Federal Republic of Germany, 1950-1973}, journal = {Empirical Economics}, volume = {3}, number = {2}, year = {1978}, note = {Econometrics 1, ch. 9, pp. 267-290. }, pages = {91-113}, author = {K. Conrad and Dale Jorgenson} }