2015-12-09. Biographie de JacobBjerknes by Arnt Eliasse Tribute to J. Bjerknes on the 100th anniversary of his birth JacobBjerknes photograph National Academy
مشين. "Pioneers in Modern Meteorology and Climatology: Vilhelm and JacobBjerknes" (PDF). مؤرشف من الأصل (PDF) في 2017-11-21. اطلع عليه بتاريخ 2008-10-13