Distributing Large Historical Census Samples on the Internet. - Steven Ruggles; Matthew Sobek; Todd Gardner (Hist. Comput., 1996)

IPUMS Census Database. - Steven Ruggles; Matthew Sobek (UCI Machine Learning Repository, 1999)

IPUMS-International Statistical Disclosure Controls: 159 Census Microdata Samples in Dissemination, 100+ in Preparation. - Robert McCaa; Steven Ruggles; Matthew Sobek (Privacy in Statistical Databases, 2010)

When Excessive Perturbation Goes Wrong and Why IPUMS-International Relies Instead on Sampling, Suppression, Swapping, and Other Minimally Harmful Methods to Protect Privacy of Census Microdata. - Lara Cleveland; Robert McCaa; Steven Ruggles; Matthew Sobek (Privacy in Statistical Databases, 2012)