"prof. Ing. Martin Hartl, Ph.D." . "Dr. Ing. Martin Hartl" . "Hartl" . "prof. Ing. Matin Hartl, Ph.D." . "8892822" . "Martin" . "Ing. Dr. Martin Hartl" . "Martin Hartl" . "Ing. Martin Hartl" . . "Matin" . "Prof. Ing. Martin Hartl, Ph.D." . "Doc. Ing. Martin Hartl, Ph.D." .