Mechanism to Indicate Support of Features and Capabilities in the Session Initiation Protocol (SIP). - Christer Holmberg; Ivo Sedlacek; Hadriel Kaplan (RFC, 2012)

URN for Country-Specific Emergency Services. - Christer Holmberg; Ivo Sedlacek (RFC, 2014)

UDP Transport Layer (UDPTL) over Datagram Transport Layer Security (DTLS). - Christer Holmberg; Ivo Sedlacek; Gonzalo Salgueiro (RFC, 2014)

Content-ID Header Field in the Session Initiation Protocol (SIP). - Christer Holmberg; Ivo Sedlacek (RFC, 2017)

gcType: a high-quality type strain genome database for microbial phylogenetic and functional research. - Wenyu Shi; Qinglan Sun; Guomei Fan; Hideaki Sugawara; Moriya Ohkuma; Takashi Itoh; Yuguang Zhou; Man Cai; Song-Gun Kim; Jung-Sook Lee; Ivo Sedlacek; David R. Arahal; et al. (Nucleic Acids Res., 2021)