Astronomer Sources Quarter 4: Jan Oort

Print Source:

Complete Dictionary of Scientific Biography. Vol. 23. Detroit: Charles Scribner's Sons, 2008. p341-347. 


Web Sources:




http://bc.ub.leidenuniv.nl/bc/tentoonstelling/Jan_Oort/inhoud.htm

http://www.esa.int/esaSC/SEMBPC2PGQD_index_0.html

http://www.answers.com/topic/jan-oort