Conference paper (2012) - H Cao (author), J.H. Batool (author), T Eriksson (author), C Fager (author), L.C.N. de De Vreede (author), Leo De Vreede (author), L.C.N. Vreede (author), L.C.N. de Vreede (author), Leo Vreede (author), Leonardus Cornelis Nicolaas Vreede (author), Leo C.N. De Vreede (author), Leo de Vreede (author), L.C.N. de Vreede (author), L.C.N. de de Vreede (author), Leonardus Cornelis Nicolaas De Vreede (author), Leo C.N. de Vreede (author), L.C.N. De Vreede (author), Leo C.N. Vreede (author), Leonardus Cornelis Nicolaas de Vreede (author)