KATE CGB TEN (1941) The Avifauna of Urk, II. LIMOSA 14 (1): 20-41.

17th Publication of the Zuiderzee Observers Club On 29 April 1936, the award rather than a port work in Urk, with storage areas, a foundation pit (for a pumping station with lock) with omringdam and then, approximately 300 m long section of the ring dike future reclamation of the Northeast (Driemaandelijksch Notice concerning the Zuiderzee Works, 17, Apri11936, p. And 10] uli 1936, pp. 13). Soon after, the work started and during my visit at 2 to 3 September 1936, these major changes already underway, on 7 April 1937 was Work fully completed

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