TY - BOOK AU - Thomas Ploug, Per Hasle, Harri Oinas-Kukkonen TI - Persuasive Technology SN - 978-3-642-13226-1 PY - 2010/// CY - Germany PB - Springer KW - Computer Science KW - Persuasive Technology UR - http://link.springer.com/openurl?genre=book&isbn=978-3-642-13225-4 ER -