Klaassen, L. H., Molle, W., & Paelinck, J. H. P. (1981). Dynamics of urban development: Proceedings of an international conference held on the occasion of the 50th anniversary of the Netherlands Economic Institute in Rotterdam, September 4, 1979. Gower.

Klaassen, Leo H., Willem Molle, and Jean H. P. Paelinck. Dynamics of Urban Development: Proceedings of an International Conference Held on the Occasion of the 50th Anniversary of the Netherlands Economic Institute in Rotterdam, September 4, 1979. Aldershot,Hants.: Gower, 1981.

Klaassen, Leo H., et al. Dynamics of Urban Development: Proceedings of an International Conference Held on the Occasion of the 50th Anniversary of the Netherlands Economic Institute in Rotterdam, September 4, 1979. Gower, 1981.