Social and emotional messages of smiling by Robert E. Kraut and others
= Social and emotional messages of smiling by Robert E. Kraut and others
{tag=Work by Robert E. Kraut}
{title2=1979}
Primary publication: https://doi.org/10.1037/0022-3514.37.9.1539
Publication text or primary record: https://kraut.hciresearch.info/wp-content/uploads/kraut79-SocialEmotionalMessagesOfSmiling-1.pdf
Journal of Personality and Social <Psychology> 37, 1539–1553; naturalistic observations of bowling and social engagement.