Clapp-Hornberger 'B' exponent Clapp-Hornberger 'B' exponent Clapp-Hornberger 'B' exponent 1381 Clapp-Hornberger 'B' exponent Clapp-Hornberger 'B' exponent Clapp-Hornberger 'B' exponent 2014-08-27T14:34:35.081Z marqh (admin) 1 1381