- Causal Inference from Graphical Models. Lauritzen Ste L. 2000
- Causality: models, reasoning, and inference. Pearl Judea. 2000
- Association, causation, and marginal structural models. Robins James M. Synthese; 2000
- From association to causation: some remarks on the history of statistics. Freedman David. Statistical Science; 1999
- Causal diagrams for epidemiologic research. Greenland S., Pearl J., et al. Epidemiology; 1999
- Are There Algorithms That Discover Causal Structure? Freedman David, Humphreys Paul. Synthese; 1999
- Lessons from quantum mechanics. Hausman D.M. Synthese; 1999