Part,  Chapter, Paragraph

1   II,     5.  8.  7|     Mohangoo AD, van der Linden MW, Schellevis FG, Raat H (2006): Prevalence
2   II,     8.  2.  1| Schrojenstein Lantman-de Valk, F.G. Schellevis, G.J. Dinant (2007). Health