1. Shore platforms;Bartrum;Meeting of the Australian and New Zealand Association for the Advancement of Science,1935
2. Pillow lavas, peridotites, and associated rocks from northernmost New Zealand;Bartrum;Transactions of the New Zealand Institute,1928
3. Health-related behaviour in context: a multilevel modelling approach;Duncan;Social Science and Medicine,1996
4. Multilevel Models in Educational and Social Research;Goldstein,1987
5. Multilevel Statistical Models;Goldstein,1995