Conference paper (2008) - J.H. Batool (author), R Liu (author), A de Graauw (author), Anton de Graauw (author), CFB van der Heijden (author), J Garadharsing (author), L.C.N. de Vreede (author), Leonardus De Vreede (author), L.C.N. de De Vreede (author), Leo de Vreede (author), Leo C.N. de Vreede (author), Leo De Vreede (author), Leonardus Cornelis Nicolaas de Vreede (author), L.C.N. Vreede (author), Leonardus Cornelis Nicolaas De Vreede (author), L.C.N. de de Vreede (author), Leo C.N. Vreede (author), Leo Vreede (author), Leo C. N. de Vreede (author), Leonardus de Vreede (author), Leonardus Cornelis Nicolaas Vreede (author), L.C.N. De Vreede (author), Leo C. N. de de Vreede (author), Leo C. N. de Vreede (author), Leonardus Vreede (author), Leo C. N. De Vreede (author), L.C.N. de Vreede (author), Leo C.N. De Vreede (author), Leo C. N. de De Vreede (author), Leo C. N. Vreede (author)