1951 On the Frequency of Cyclones over the North Atlantic Related to the Sunspot Cycle

POLLAK, L.W. and P. G. TEDDE, 1951.
On the Frequency of Cyclones over the North Atlantic Related to the Sunspot Cycle. (Arch. f. Met., Geophysik u. Bioklim., Wien, Serie A, Band IV, 1951, pp. 98-111).