• Piirimäe, Kristjanehituse ja arhitektuuri instituut, lektorAt TalTech: 2002-2005, 2007-https://orcid.org/0000-0003-1659-888X https://www.webofscience.com/wos/author/rid/DNU-8884-2022 https://www.scopus.com/authid/detail.uri?authorId=14119994200 https://taltech.ee/kontaktid/vee-ja-keskkonnatehnika-uurimisruhm/kristjan-piirimae
• Water and environmental engineering research group.
  Valorisation of environmental resources.
  Pachel, Karin https://taltech.ee/en/water-and-environmental-engineering-research-group