by Chaowasku, Tanawat, Thomas, Daniel C, van der Ham, Raymond W. J. M, Smets, Erik F, Mols, Johan B, Chatrou, Lars W
Published in American journal of botany (01.04.2014)

by van der Ham, R.W.J.M., van Konijnenburg-van Cittert, J.H.A., Jagt, J.W.M., Indeherberge, L., Meuris, R., Deckers, M.J.M., Renkens, S., Laffineur, J.
Published in Review of palaeobotany and palynology (01.06.2017)

by Chaowasku, Tanawat, Johnson, David M., van der Ham, Raymond W. J. M., Chatrou, Lars W.
Published in Kew bulletin (01.06.2015)

by Chaowasku, Tanawat, Van Der Ham, Raymond W.J.M
Published in Systematics and biodiversity (01.06.2013)

by van der Ham, R.W.J.M.
Published in Blumea (16.04.2010)

by Segaar, P.J., van der Ham, R.W.J.M.
Published in Review of palaeobotany and palynology (01.12.1993)

by Ham, R.W.J.M. van der
Published in Review of palaeobotany and palynology (21.06.1989)

by van der Ham, R.W.J.M., van Konijnenburg-van Cittert, J.H.A., Indeherberge, L.
Published in Review of palaeobotany and palynology (01.05.2007)

by Couvreur, Thomas L. P., Botermans, Marleen, van Heuven, Bertie Joan, van der Ham, Raymond W. J. M.
Published in Grana (01.09.2008)

by van der Ham, R.W.J.M., Dortangs, R.W.
Published in Review of palaeobotany and palynology (01.09.2005)

by van der Ham, R.W.J.M., van Konijnenburg-van Cittert, J.H.A., Dortangs, R.W., Herngreen, G.F.W., van der Burgh, J.
Published in Review of palaeobotany and palynology (01.11.2003)

by Ham, R.W.J.M. van der
Published in Gorteria (1981)

by Sierra, S.E.C., Aparicio, M., Kulju, K.K.M., Fišer, Ž, van Welzen, P.C., van der Ham, R.W.J.M.
Published in Blumea (08.12.2006)

by Cobb, L., Jansen-Jacobs, M.J., van der Ham, R.W.J.M.
Published in Blumea (04.07.2007)

by Buijsen, J.R.M, Welzen, P.C. van, Ham, R.W.J.M. van der
Published in Systematic botany (2003)

by van der Ham, R.W.J.M., van Konijnenburg-van Cittert, J.H.A., van der Burgh, J.
Published in Review of palaeobotany and palynology (01.09.2001)

by van der Ham, R.W.J.M., Hetterscheid, W.L.A., van Heuven, B.J.
Published in Review of palaeobotany and palynology (01.10.1998)

by Duyfjes, B.E.E., Van Der Ham, R.W.J.M, De Wilde, W.J.J.O.
Published in Blumea (07.04.2003)

by van der Ham, R.W.J.M., Hetterscheid, W.L.A., van Heuven, B.J.
Published in Review of palaeobotany and palynology (01.10.1998)

by van der Ham, R.W.J.M., Jagt, J.W.M., Janssens, H.J.
Published in Geologie en mijnbouw (01.11.2011)