He was influenced by Otto Bütschli, Theodor Curtius, Curt Herbst, Alfred Hettner, Albrecht Kossel, Friedrich Krafft, Robert Lauterborn, Hermann Karl Rosenbusch , Wilhelm Salomon-Calvi and August Schuberg.
His doctoral thesis in 1904 under Bütschli was titled Über Sinnesorgane an den Tentakeln des Genus Cardium.
He went to Norway and Lapland in 1899 with his brother Paul and friends, the Caucasus in 1905 (during the Great War his work also involved reconnaissance) and Turkestan in 1906.
He was also asked to collect fishes during his Baluchistan survey for the Quetta Museum by Sir Henry McMahon.
Laubman was a member of the Österreichische Geographische Gesellschaft and for his war services he received an Iron Cross.