Evaluating the Strange Situation Procedure (SSP) to Assess the Bond between Dogs and Humans Rehn, Therese ; McGowan, Ragen T. S. ; Keeling, Linda J. Abstract Publication: PLoS ONE Pub Date: February 2013 DOI: 10.1371/journal.pone.0056938 Bibcode: 2013PLoSO...856938R