Johan R. Ryheul

- Marinekorps Flandern 1996 in Flemish

- Marinekorps Flandern 1997 in German

- Flugplatz Jabbeke, Flugplatz Stalhille 1999 in Flemish

- German Naval Air Service at the Western Front part 1 in English

- German Naval Air Service at the Western Front part 2 in English

- U-Boot Flottille Flandern I and II in English

- The German 38 cm guns in Flanders in Flemish

- Marinekorps Flandern - 2010 in Flemish

- Groot-Jabbeke in WW I - 2016 in Flemish (to be published)

- Marinekorps Flandern 2016 in english (to be published)

- KEK’s and Fokkerstaffels – The early German fighter units in 1915-1916 - 2014 in English

- The German Jasta's and Air Service during 3rd Ypres - 2015 in English (to be published)