David Justus Ludwig Hansemann
(2)
Ludwig, David (Wageningen University and Research, Netherlands),Boogaard, Birgit,Macnaghten, Phil,Leeuwis, Cees
(2)
David J. Ludwig/ Mary Runge Jacob
(1)
David J. Tongway/ John A. Ludwig
(1)
David Ludwig/ Dawn Ludwig
(1)
David Ludwig/ Dawn Ludwig (NRT)
(1)
David Ludwig/ Dawn Ludwig/ Mark Hyman (FRW)
(1)
David Ludwig/ Suzanne Rostler
(1)
David Mallow/ David Ludwig/ Goran Nilson
(1)
David Pinski/ Colin Chambers (ADP)/ Ludwig Lewisohn (TRN)
(1)
Kris Verburgh/ David Ludwig (FRW)
(1)
Ludwig Van Beethoven (COP)/ David Pearl (CRT)
(1)
Ludwig Wittgenstein, David Francis Pears, Brian Mcguinness, Bertrand Russell
(1)
Ludwig Wittgenstein/ David Francis Pears/ Brian McGuinness/ Bertrand Russell (INT)
(1)
Ludwig, David (Wageningen University and Research, Netherlands),Koskinen, Inkeri (Tampere University, Finland),Mncube, Zinhle (University of Johannesburg, South Africa),Poliseli, Luana (Konrad Lorenz
(1)