@InCollection{waltz75,
  author = 	 {D. Waltz},
  title = 	 {Understanding line drawings of scenes with shadows},
  booktitle = 	 {The Psychology of Computer Vision},
  pages =	 {19--91},
  publisher =	 {McGraw-Hill},
  year =	 1975,
  editor =	 {Patrick Winston},
  isbn = 	 {0070710481},
  googleid = 	 {KOn-JnCIQhEJ:scholar.google.com/},
  keywords = 	 {ai vision},
  cluster = 	 {1243706462379632936}
}