![](/img/cover-not-exists.png)
On the Study of Invariants
Luchins, Abraham S., Luchins, Edith H.Volume:
70
Language:
english
Journal:
The Journal of General Psychology
DOI:
10.1080/00221309.1964.9920597
Date:
April, 1964
File:
PDF, 821 KB
english, 1964