@inbook{Wong2009,
author = {Wong, D. },
title= {The modifiable areal unit problem (MAUP)},
year = {2009},
doi = {10.4135/9780857020130.n7},
editor = {Fotheringham, A.S.},
editor = {Rogerson, P.A.},
booktitle = {The SAGE handbook of spatial analysis},
address = {Thousand Oaks},
publisher = {Sage},
pages = {105--123},
}