Netherlands Reformed Church - A history of the Nederlands Gereformeerde Kerken (NGK). - http://www.ngk.nl/ngken.html
The Secession of 1886 - A short history of the secession from the N.H.K. which took place under the leadership of Abraham Kuyper and was known as the Doleantie (which means "mourning"), - http://www.crchurches.net/resources/crcstuff/WhoWeAre/history/part_vi.html
The Secession of 1834 - A history of the reform movement in the Netherlands Hervormde Kerk (the "state" church--NHK, which eventually resluted in the formation of the Christelijk Gereformeerde Kerk ( Christian Reformed Church). - http://www.crchurches.net/resources/crcstuff/WhoWeAre/history/part_i.html
The Reformed Church in the Netherlands - A short history of the Netherlands Reformed churches from the Reformation to the present. - http://www.reformiert-online.net:8080/t/eng/bildung/grundkurs/gesch/lek5/index3.jsp
Membership in Dutch Reformed Churches - A 1996 listing of membership totals in Dutch Reformed churches in the Netherlands and in North America. - http://www.iclnet.org/pub/resources/text/reformed/archive96/nr96-105.txt