• Heat pump use in rural district heating networks in EstoniaLepiksaar, Kertu; Kalme, Kiur; Siirde, Andres; Volkova, AnnaEnvironmental and climate technologies2021 / p. 786–802 https://doi.org/10.2478/rtuect-2021-0059 https://www.scopus.com/sourceid/21100232822 https://www.scopus.com/record/display.uri?eid=2-s2.0-85119484486&origin=inward&txGid=fa6789163910e6909a4acb9a4ad52bcc https://jcr.clarivate.com/jcr-jp/journal-profile?journal=ENVIRON%20CLIM%20TECHNOL&year=2022 https://www.webofscience.com/wos/woscc/full-record/WOS:000714892200002