by Sommersel, O. K., Bjerketvedt, D., Christensen, S. O., Krest, O., Vaagsaether, K.
Published in Shock waves (01.09.2008)

by Omang, M., Christensen, S. O., Børve, S., Trulsen, J.
Published in Shock waves (01.06.2009)

by Bakken, J., Slungaard, T., Engebretsen, T., Christensen, S. O.
Published in Shock waves (01.07.2003)

by Christensen, O S
Published in Dansk medicinhistorisk årbog (1980)

by CHRISTENSEN, ALTON, O., SR
Year of Publication 10.10.2002

by CHRISTENSEN, SR. ALTON O
Year of Publication 29.03.2005

by CHRISTENSEN, ALTON O SR
Year of Publication 15.07.1980

by CHRISTENSEN, SR. ALTON O
Year of Publication 08.05.2001

by AS CHRISTENSEN S & CO
Year of Publication 20.05.1968