M. Jensen., K. (1957) “Sverre Petterssen: Weather Analysis and Forecasting. Vol. I, Motion and Motion Systems. 2 udg. 1956. McGraw-Hill Book Company 1956. $ 8.50”., Geografisk Tidsskrift, 56. Tilgængelig hos: https://tidsskrift.dk/geografisktidsskrift/article/view/46334 (Set: 5 december 2025).