Railway artillery ranged in calibre from 15 cm to 80 cm the
railway gun was seen by the German army as a way of moving
heavy artillery quickly around the country, it was also thought
that railway guns could help defend coastal areas by being
able to deploy quickly.
German Artillery in World War II. 1939-1945.
ISBN-10: 0887407625
German Artillery of World War Two.
ISBN-10: 1853672610
German infantry weapons of World War II.
ISBN-10: 0882543725
German Small Arms of World War II.
ISBN-10: 0896730239
For a complete list of
sources