The Global Wave of Refugees and Migrants: Complex Challenges for European Policy Makers

International Migration at the Beginning of the Twenty‐First Century: Global Trends and Issues

Stephen Castles · International Social Science Journal · 2000 · 381 citations

Social Sciences, Demography, Human Geography +17

Reactive Migration: Sociological Perspectives On Refugee Movements

Anthony H. Richmond · Journal of Refugee Studies · 1993 · 358 citations · Full text

Social Sciences, Sociology, Immigration Studies +14

Environmental Refugees? Classifying Human Migrations Caused by Environmental Change

Diane C. Bates · Population and Environment · 2002 · 334 citations

Natural Sciences, Environmental Sciences, Human Geography +5

The push and pull factors of international migration

R.F. van der Erf, I. Esveldt, W.G.F. Groenewold et al. · 2002 · 47 citations

Social Sciences, Human Geography, Globalization +13