• Analysis of the helical structure with axial symmetryŠtaras, Stanislovas; Kleiza, A.BEC'98 : the 6th Biennial Conference on Electronics and Microsystems Technology, October 7-9, 1998, Tallinn, Estonia : proceedings1998 / p. 349-352: ill
• Analytic Moufang-transformationsPaal, Eugen1988 https://www.ester.ee/record=b1229781*est
• Application of symmetry in descriptive geometryMäits, MargoEngineering Graphics Baltgraf - 7 : proceedings of the Seventh International Conference : (May 27-28, 2004, Vilnius, Lithuania)2004 / p. 31-37 : ill
• Chiral ionic liquids : effect of symmetry and stereochemistry on toxicity and biodegradationGathergood, NicholasSymmetry : culture and science2017 / p. 179-182 : ill http://journal-scs.symmetry.hu/content-pages/volume-28-number-2-pages-161-240-2017/
• Couceiro, Miguel; Devillet, Jimmy. Every quasitrivial \(n\)-ary semigroup is reducible to a semigroup : [review]Henno, JaakZentralblatt MATH2020 / 1 p https://zbmath.org/?q=an:1446.20084
• Modelling of symmetry measurement uncertainty using Monte-Carlo methodKulderknup, EdiProceedings of the 8th International Conference of DAAAM Baltic Industrial Engineering, 19-21st April 2012, Tallinn, Estonia. 22012 / p. 496-499 : ill
• Moufang symmetries and conservation lawsPaal, Eugen; Lõhmus, Jaak; Sorgsepp, LeoEesti Teaduste Akadeemia Toimetised. Füüsika. Matemaatika1992 / 2, lk. 133-141
• Moufang symmetry I. Associators and Akivis identity. Generalized Lie and Maurer-Cartan equationsPaal, EugenASTRALGO Science2016 / art. 1602, [6] p http://www.astralgo.com/2382-672X/1602.php
• On currents and symmetries associated with Mal'tsev algebrasLõhmus, Jaak; Paal, Eugen; Sorgsepp, Leo1989 https://www.ester.ee/record=b1209537*est
• Semi-symmetric envelopes of some four-dimensional reducible symmetric submanifoldsLumiste, Ülo; Riives, K.Tallinna Tehnikaülikooli Toimetised1992 / lk. 49-58
• Some remarks on the internal symmetries of relativistic wave equationsLoide, Rein-KarlActa physica Polonica. B, Particle physics and field theory, nuclear physics, theory of relativity1983 / p. 671-678 https://www.ester.ee/record=b3360521*est
• Symmetry : culture and science. Vol. 28, No. 2, Symmetry and asymmetry phenomena in chemical, green, and related sciences : a thematic issue2017 http://journal-scs.symmetry.hu/content-pages/volume-28-number-2-pages-161-240-2017/
• Symmetry and asymmetry phenomena in chemical, green, and related sciencesBorovkov, Victor; Gathergood, NicholasSymmetry : culture and science2017 / p. 165-166 http://journal-scs.symmetry.hu/content-pages/volume-28-number-2-pages-161-240-2017/
• The essence of symmetry in physics-like scienceMüürsepp, PeeterSymmetry : culture and science2009 / 1/4, Symmetri Festival 2009 : Symmetry in the History of Science, Art and Technology. Part 1, p. 99-112
• Введение в Муфанг-симметриюPaal, Eugen1987 https://www.ester.ee/record=b1223099*est
• Муфанг-Мальцевская симметрияPaal, EugenEesti Teaduste Akadeemia Toimetised. Füüsika. Matemaatika1993 / 2, lk. 157-165
• О внутренних симметриях релятивистских волновых уравненийLoide, Rein-KarlИзвестия высших учебных заведений. Физика1983 / с. 111-112 https://www.ester.ee/record=b2144782*est