Stamboom Van der Werff / Kooistra » Sources

An important indicator of the quality of a genealogical publication is the number of citations. In this publication, 20,744 (of the 21,810) personal pages are provided with 1 or more source references.
Any citations in notes are not counted.

Citations: sign of quality

unsatisfactory - inadequate - enough - good

The overview below shows the sources, ordered by place of finding, on which the publication is (partly) based.