Part,  Chapter, Paragraph

1   II,     5.  8.  4|       dusts, gases and fumes (Zock et al, 2001; Sunyer et al,
2   II,     5.  8.  7|      54: 201-206.~ ~Sunyer J, Zock JP, Kromhout H, Garcia-Esteban
3   II,     5.  8.  7| Respir J 2006; 27: 833-852.~ ~Zock J-P, Sunyer J, Kogevinas