and Essays in Honor of Helen Fein (2007), coedited with Joyce Apsel and published by the International Association of Genocide Scholars.
Santa Barbara, California | Santa Barbara | University of California, Santa Barbara | Barbara Bush | Barbara Stanwyck | Barbara Mikulski | Barbara Hershey | Barbara Boxer | Barbara Ehrenreich | Barbara Mandrell | Barbara Kruger | Santa Bárbara | Barbara Eden | Barbara Walters | Barbara Cartland | Barbara Steele | Barbara Cook | Barbara | Santa Barbara (TV series) | Saint Barbara | Barbara Taylor Bradford | Barbara Dickson | Barbara Seagram | Barbara Rush | Santa Barbara News-Press | Santa Barbara County | Barbara Tucker | Barbara Hambly | Barbara Blaine | Santa Barbara Museum of Art |
For example Frank Chalk and Kurt Jonassohn studied the whole of human history, while Leo Kuper and R. J. Rummel in their more recent works concentrated on the 20th century, and Helen Fein, Barbara Harff and Ted Gurr have looked at post World War II events.