@article{kung2017helmut, author = {Küng, Enn}, hdsurl = {https://hds.hebis.de/ubmr/Record/HEB425454150}, journal = {. Tuna. - Tallinn, 1998-. - ISSN 1406-4030 20}, keywords = {}, number = {4 (77)}, pages = {150-152}, title = {Helmut Piirimäe in memoriam}, uniqueid = {HEB425454150}, volume = 20, year = 2017 }