On problem-solving (Q54122414)
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Current Data About On problem-solving
(P31) (Q13442814)

(P304) i-113

(P433) 5

(P478) 58

(P577) +1945-00-00T00:00:00Z

(P921) (Q730920)
(P887)

(P1433) (Q27712859)

(P1476) "On problem-solving" (language: en)

(P2093) Karl Duncker
(P1545) 1

other details

External Links
(P356) 10.1037/H0093599