Klaus E. Grossmann (PhD, University of Arkansas, 1965; Hab., University of Freiburg, 1970) first discovered the work of John Bowlby and Mary Ainsworth while conducting ethological and experimental research at the University of Freiburg's Institute for Biology after receiving his doctoral degree. He was appointed Full Professor at Bielefeld University, Germany, in 1970, and began the Bielefeld Longitudinal Study in 1973. In 1977, he moved his laboratory to the University of Regensburg and started a second long-term longitudinal attachment study. Professor Grossmann's numerous publications inclu...