A revised and updated version of
Abraham Kuyper: An Annotated Bibliography 1857-2010 by Tjitze Kuipers (2011)
You can buy a printed edition of this book on the site of the publisher.
1985
[Letters.]
In: Briefwisseling Kuyper-Idenburg. Verzorgd, ingeleid en toegelicht door J. de Bruijn en G. Puchinger.
Franeker, T. Wever 1985. 640, [1] p., ills., 25cm.—bd. ƒ95.-.
Account (pp. 7–8) by: J. de Bruijn, G. Puchinger.
Introduction (pp. 9–63) by: G. Puchinger.
Binding: full cloth; lettered in gold on cover and spine; dust jacket.
ISBN: 90-6135-380-7.
The published correspondence between Idenburg and Kuyper commences on December 4, 1892, and concludes on September 2, 1920. The first letter from Kuyper (no. 5) is dated August 1, 1904. His final letter to Idenburg (no. 143) was sent on August 8, 1919. The correspondence is annotated with elucidatory footnotes.
A set of twelve grievances about Th. Heemskerk, which Kuyper composed in the middle of June 1908 (no. 17A, pp. 170–171), is also included. Idenburg (whose letters refer to the grievances) attempted in vain to reconcile Kuyper with Heemskerk. The relationship between Kuyper and Heemskerk had become troubled in 1907 and it remained so.