[PE]
Petre, Marian; Blackwell, Alan F.: ‘Mental Imagery in Program Design and Visual Programming’. In: International Journal of Human-Computer Studies. 51, 1, 1999. p. 7-30.
Petre, Marian; Blackwell, Alan F.: ‘Mental Imagery in Program Design and Visual Programming’. In: International Journal of Human-Computer Studies. 51, 1, 1999. p. 7-30.