A rough study of the painting can be found here.

The full study, published by Taylor & Francis, can be found here.

Further studies on artifact-centric business processes can be found in.

The study can also be found in Journal of Seismology.

Another eight-month study was done in 1997 and found that 1.1 birds were killed per turbine.

A detailed study of machine learning can be found in Mitchell (1997).

Finally, studies investigating the communication styles of parents were found to produce conflicting results.

A study of affix stemming for several European languages can be found here.

The earliest studies were done in Europe a decade ago and found similar widespread, low-level contamination.

Few clinical studies of the Gerson therapy are found in the medical literature.