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In: European population: Démographie européenne, Jg. vol. 2: Dynamiques démographiques, S. 509-5251993


Prevention and intervention in the analytical perspective of guidance
In: Social intervention: potential and constraints, Jg. 1, S. 3-201987


On children's quantitative concept of rational number: construct and estimate the sum
In: Proceedings of the fifth annual meeting: Montréal Sept. 29 - Oct. 1, 1983 = actes de la cinquième rencontre annuelle / PME-NA, North American Chapter of the International Group for the Psychology of Mathematics Education, Jg. vol. 2, S. 272-2791983
Inconsistent student behavior in applicational situations of mathematics
In: Proceedings of the Ninth International Conference for the Psychology of Mathematics Education, Jg. vol. 1: Individual contributions, S. 362-3681985
Programming languages and opportunities they offer to the statistical community
In: Proceedings of the 1st [First] World Congress of the Bernoulli Society: Tashkent, USSR, 8-14 September 1986, Jg. vol. 1: Probability theory and applications, S. 779-7921986
