(Only those written in English, in Swedish, in German, or in Czech are mentioned)
Om psykologiska prov och deras användning vid valet av arbetsledare. Industri-tidningen 6-7, pp. 326-328. 1951
Szondi-profilens faktorer. Nordisk psykologi 2, pp. 39-45. 1952
Eine Faktorenanalyse im Farbpyramidentest. Zeitschrift für Diagnostische Psy-chologi und Persönlichkeitsforschung 4, pp. 292-308. 1954
Leadership Qualities; A Theoretical Inquiry and an Experimental Study on Fore-men. (Doctoral thesis.) Annales Academiae Scientiarum Fennicae, ser. B, tom. 95,1. 211 pages. 1955
The Effect of the Selection Situation on Responses to Questionnaires. Acta Psy-chologica 1956, pp. 244-246 and Nordisk psykologi 5, pp 164-166. 1956
Selekcija Poslovoda u Finskoj. Izobrazba Rukovodilaca 5, pp. 13-14. 1957
On the Significance of Factors in Studies with a Small Number of Variables. Acta Psychologica 1959, pp. 277-289 and Nordisk psykologi, pp. 225-237. 1959
Inlärnigspsykologiska aspekter på det ekonomiska beteendet. Ekonomiska Sam-fundets Tidskrift 3, pp. 180-191. 1960
A Stochastic Model of Social Interaction. Transactions of the Westermarck Soci-ety, VII, 119 pages. 1961
Stochastic Process of Social Contacts. Scandinavian Journal of Psychology, pp. 113-128. 1961
A Stochastic Theory of Social Contacts; A Laboratory Study and an Application to Sociometry. Transactions of the Westermarck Society VIII, 101 pages. 1962
Simulation of the Stochastic Learning Process in Group Problem Solving, in Re-ports from IBM Symposium; Uses of Computors in Psychology. 1965
Social Interaction as a Stochastic Learning Process, in Archiv européennes de so-ciologie, tome VI, numéro 1, pp. 68-88. 1965
A Study on Sociometric Group Structure, in Berger, Zelditch, and Anderson (eds.): Sociological Theories in Progress. Boston, Houghton Mifflin, 1966
Socialni interakce jako stochasticky proces uceni. Ceskoslovanska psychologie, rocnik XI, c. 4, pp. 333-346. 1967
The problem of artistic appreciation. Adult Education in Finland, Vol. II, No 4, pp. 3 - 8. 1967
Simulation de l'interaction sociale en termes d'un processus d'apprentissage sto-chastique. (Résumé en francais, l'article en anglois). Calcul et formalisation dans les sci-ences de l'homme. Editions du Centre National de la Recherche Scientifique, Paris 1968, 283-296.
Power and power processes. Talk given at the Lahti Writer's Reunion, summer 1968.
The Conceptual Representation of Choice Behavior and Social Interaction, Quality and Quantity, IV, pp. 165-192. 1970
Group Maze. Experiments and simulations in problem-solving by groups. Com-mentationes Scientiarum Socialium, 3, 1972, 119 pages. Societas Scientiarum Fennica, Helsinki.
Simulation of multi-play prisoner's dilemma according to a quantitative goal/expectation theory. Research reports, Department of Social Psychology, University of Helsinki, 2. 1981
Prisoner's dilemma in the light of component analysis of transition probabilities. Res. rep. as above, 2. 1983
Corrected Lewinian system in terms of probabilistic theory, in Micko and Schultz (eds.): Formalization of Psychological Theories. University of Bielefeld. 1983
Component analysis of transition probabilities and its application to prisoner's di-lemma, in Degreef and Van Bugenhaut (eds.): Trends in Mathematical Psychology. El-sevier Science Publishers B. V. (North Holland), pp. 433-448. 1984
Actualization, Perception, and Reality. Symposia on the Foundations of Modern Physics, Singapore, 1993.
Stochastic field theory of behavior. Commentationes Scientiarum Socialium 34. Helsinki: Societas Scientiarum Fennica. (250 pages). 1986 Summary
A general stochastic description of processes; an interdisciplinary approach. Re-search reports 1/98, Department of Social Psychology, Helsinki University. (Abstract in English, text in Finnish: Tapahtumisen yleinen kuvaus.) 1998
Cognitive Process and Behavior; A Conceptual Framework and Simulations. Re-search Reports 1/2000, Department of Social Psychology, Helsinki University. (e-book, available in address: http://ethesis.helsinki.fi/julkaisut/val/sosps/muut/rainio/ ) Abstract
Towards a Holistic Study on Consciousness. (Unpublished article in Finnish. Abstract) 2001
Quantum and Cognition; an Approach to Dynamic Psychology in a Quantum Framework. (In Finnish.) Abstract in English. 2006
Discrete Process Model for Quantum and Mind Systems. (In Finnish). Abstract in English. 2006
Discrete Process Model for Quantum and Mind Systems. Research Reports 1/2008, Department of Social Psychology, Helsinki University. e-book, available in address: https://ethesis.helsinki.fi/julkaisut/val/sosps/muut/rainio2/
Discrete Process Model for Quantum Systems of Matter and Mind, World Futures, Vol. 65, N:o 4, May 2009. Abstract available in address: https://www.tandfonline.com/doi/abs/10.1080/02604020802392161
Kurt Lewin’s Dynamical Psychology Revisited and Revised. Dynamical Psychology, 2010. e-text, available in https://www.researchgate.net/publication/287003320_Kurt_Lewin's_dynamical_psychology_revisited_and_revised
The Mind/Brain Problem and Perception in Terms of Discrete Quantum Mechanics (DQM), International Journal of Psychological Studies, Vol. 3, No 2/2011. e-text, available in http://www.ccsenet.org/journal/index.php/ijps/article/view/13337