Riis, J. (1981). SOLAR-TERRESTRIAL INFLUENCES ON WEATHER AND CLIMATE: proceedings of a symposium/workshop held at the Fawcess Center for Tomorrow, the Ohio State University, Columbus, Ohio, 24-48 August, 1978. Ed. by Billy M. McCormac, Thomas A. Seliga. D. Reidel, Dordrecht 1979, XIII, 346 s., ill., 25 cm. Pris ikke opgivet . Geografisk Tidsskrift, 81. Hentet fra https://tidsskrift.dk/geografisktidsskrift/article/view/45177