Patents and the measurement of technological change a survey of the literature

por Basberg, Bjorn L.
Publicado 1987

Electric fields in the dayside auroral oval. by T. S. Jorgensen, I. S Mikkelsen, K. Lassen, G. haerendel, E. Rieger, A. zuela, F. S. Moser, M. Temerin, B. Holback, L. Bj÷rn

Publicado 1980