by Pistrick, Erika | Hammer, Karl | Pistrick, Klaus.
by Hammer, Karl | Perrino, Pietro | Hanelt, Peter.
by Hammer, Karl.
by Maly, Roland | Lehman, Christian O | Hammer, Karl.
by Hjon-Sam, Kim | Hjong-Son, Pak | Hanelt, Peter | Un-Xoan, Han | Hammer, Karl.
by Hammer, Karl | Un-Xoan, Han | Mun-Chan, Baik.
by Mun-Chan, Baik | Hammer, Karl | Ho-Dzun, Hoang.
by Hammer, Karl | Ho-Dzun, Hoang | Un-Xoan, Han.
by Hammer, Karl | Pignone, Domenico | Perrino, Pietro.
by Hammer, Karl | Sabir, Adel A.
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