| Ak |: AK_Restituzione del contesto
| Ak |: AK
| Ak |: AK_Illusion
| Ak |: AK_Overlapping III
| Ak |: AK_Illusion on form VI
| Ak |: AK_Portal III
| Ak |: AK_Portal II
| Ak |: AK_Directionally opposite lights
| Ak |: AK_Four
| Ak |: AK_Perspective
| Ak |: AK_Illusory profile III
| Ak |: AK_Collage II
| Ak |: AK_Collage
| Ak |: AK_Portal
| Ak |: AK_Illusion on form V
| Ak |: AK + CENTINA
| Ak |: AK_Level
| Ak |: AK_Opposite
| Ak |: AK_Alternate
| Ak |: AK_Subtraction
| Ak |: AK_Negative/positive _b
| Ak |: AK_Negative/positive
| Ak |: AK_Geomteric décollage
| Ak |: AK_Quadrato cartone
| Ak |: AK_Quadrato cartone
| Ak |: AK_Quadrato
| Ak |: AK_Geometrical Dècollage
| Ak |: AK_Geometrical Dècollage
| Ak |: AK_Livelli
| Ak |: AK_Gradient IV