At: Acta Botanica Neerlandica, 35, 2 By: Visscher H., Kerp H., Clement-Westerhof J. A.
journalAt: Review of Palaeobotany and Palynology, 52, 4 By: Clement-Westerhof J. A.
journalAt: Review of Palaeobotany and Palynology, 54, 1-2 By: Kerp H., Haubold H.
journalAt: Review of Palaeobotany and Palynology, 63, 3-4 By: Poort R. J., Kerp H.
journalAt: Neues Jahrbuch für Geologie und Paläontologie Abhandlungen, 63, 1-3 By: Kerp H., Clement-Westerhof J. A.
journalAt: Review of Palaeobotany and Palynology, 83, 1-3 By: Broutin J., Kerp H.
journalAt: Review of Palaeobotany and Palynology, 91, 1-4 By: Naugolnykh S. V., Kerp H.
journalAt: Review of Palaeobotany and Palynology, 91, 1-4 By: Kerp H., Penati F., Brambilla G., Clement-Westerhof J. A., van Bergen P. F.
journalAt: Journal of Paleontology, 61, 6 By: Devera J. A.
bookAt: Iskop. Tsvetk. Rast. SSSR, Leningrad, Izdatel'stvo Nauka, Leningradskoe otdelenie, 1974, 1 By: Kutuzkina E. F.