The Hermite - Minkowski domain of reduction of positive definite quadratic forms in six variablesTammela, PaulJournal of Soviet Mathematics1976 / p. 677-688 : ill https://doi.org/10.1007/BF01092512

Reduction theory of positive quadratic formsTammela, PaulJournal of Soviet Mathematics1979 / p. 197-276 : ill https://doi.org/10.1007/BF01117520 Journal metrics at Scopus Article at Scopus

Two remarks on Bravais manifoldsTammela, PaulJournal of Soviet Mathematics1976 / p. 689-691 : ill https://doi.org/10.1007/BF01092513 Journal metrics at Scopus Article at Scopus

Venkov's reduction theory of positive-quadratic formsTammela, PaulJournal of Soviet Mathematics1985 / p. 1306 - 1312 https://doi.org/10.1007/BF02108244 Journal at Scopus Article at Scopus