Autor
Piaget, Jean
Inhelder, Bärbel
18
Fraisse, Paul
5
Inhelder, Barbel
5
Bang, Vinh
3
Dami, Catherine
3
Grize, Jean-Blaise
3
Heller, J.
3
Maier, Robert
3
Sinclair, Hermine
3
Apostel, Leo
2
Berthoud-Papandropoulou, I
2
Beth, E. W.
2
Bliss, Joan
2
Bronckart, Jean Paul
2
Bullinger, A.
2
Costa de Beauregard, Oliver
2
Foix, Juan Carlos
2
García, Rolando
2
Hernández Alfonso, Luis
2
Leray, Jean
2
Maurice, D.
2
Miller, Miriam
2
Mounoud, Pierre
2
Osterrieth, Paul A.
2
Papert, Seymour
2
Parrat-Dayan, S.
2
Rappe du Cher, E.
2
Rey, A.
2
Riani, Mercedes
2
Robert, Madelon
2
Saussure, R. de
2
Tanner, J.M
2
Ullmo, Jean
2
Wallon, Henri
2
Ajuriaguerra, Julian de
1
Allport, Floyd
1
Apostel, L.
1
Artin, E.
1
Bang, V.
1
Banks, L.
1
Battro, Antonio
1
Beers Bogulawski, Dorothy
1
Beers Boguslawski, Dorothy
1
Beth, Evert
1
Blanchet, A.
1
Blanchet, Alain
1
Blogie, Louis de
1
Bonnet, Cl
1
Bovet, M.
1
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