Eesti Teaduste Akadeemia (1989- ), Tartu Ülikool, Tallinna Tehnikaülikool, Tallinna Ülikool, & Eesti Maaülikool. Estonian journal of engineering. Publlished by the Estonian Academy of Sciences in collaboration with the University of Tartu, Tallinn University of Technology, Tallinn University, and the Estonian University of Life Sciences.
Παραπομπή σε μορφή Chicago (17η εκδ.)Eesti Teaduste Akadeemia (1989- ), Tartu Ülikool, Tallinna Tehnikaülikool, Tallinna Ülikool, και Eesti Maaülikool. Estonian Journal of Engineering. Tallinn: Publlished by the Estonian Academy of Sciences in collaboration with the University of Tartu, Tallinn University of Technology, Tallinn University, and the Estonian University of Life Sciences.
Παραπομπή σε μορφή MLA (8th εκδ.)Eesti Teaduste Akadeemia (1989- ), et al. Estonian Journal of Engineering. Publlished by the Estonian Academy of Sciences in collaboration with the University of Tartu, Tallinn University of Technology, Tallinn University, and the Estonian University of Life Sciences.