URLs for Telephone Calls. - Antti Vaha-Sipila (RFC, 2000)

BT-Crowds: Crowds-Style Anonymity with Bluetooth and Java. - Antti Vaha-Sipila; Teemupekka Virtanen (HICSS, 2005)

URI Scheme for Global System for Mobile Communications (GSM) Short Message Service (SMS). - Erik Wilde; Antti Vaha-Sipila (RFC, 2010)