Jan Fredrik Helgaker
发表
Jan Fredrik Helgaker,
Antonie Oosterkamp,
Leif Idar Langelandsvik,
2014
.
Jan Fredrik Helgaker,
Antonie Oosterkamp,
Tor Ytrehus,
2013
.
Jan Fredrik Helgaker,
Antonie Oosterkamp,
Tor Ytrehus,
2015
.
Bernhard Müller,
Jan Fredrik Helgaker,
Tor Ytrehus,
2014
.
Jan Fredrik Helgaker,
J. Helgaker,
2013
.
Jan Fredrik Helgaker,
2012
.
Jan Fredrik Helgaker,
Sjef IJzermans,
Tor J. Landheim,
2017
.
Jan Fredrik Helgaker,
Tor Ytrehus,
2012
.
Sigmund Clausen,
Jan Fredrik Helgaker,
Sigmund Mongstad Hope,
2016
.