@inbook {Scherer1980, title = {The functions of nonverbal signs in conversation}, booktitle = {The Social and Psychological Contexts~of~Language}, year = {1980}, pages = {225{\textendash}244}, publisher = {Lawrence Erlbaum}, organization = {Lawrence Erlbaum}, address = {Hillsdale. NJ}, author = {Scherer, Klaus R}, editor = {Robert Saint Clair and Howard Giles} } @inbook {Giles1979a, title = {Speech markers in social interaction}, booktitle = {Social Markers in Speech}, year = {1979}, pages = {343 {\textendash} 381}, publisher = {Cambridge University Press}, organization = {Cambridge University Press}, address = {Cambridge}, author = {Howard Giles and Scherer, Klaus R and Donald Taylor}, editor = {Scherer, Klaus R and Howard Giles} }