Breadcrumb Home About Find staff Roger A Johansson Roger A Johansson Research Engineer Tjärnö Marine Laboratory Telephone +46 31-786 96 02 +46 766-22 96 02 Mail roger.a.johansson@gu.se Visiting address Tjärnö marina laboratorium, Laboratorievägen 10 45296 Strömstad Postal address Tjärnö marina laboratorium 45296 Strömstad