31. | | Autor: Vitorino, José | |
32. | | Autor: Morris, Stephen | |
33. | | Autor: Lhano, Adérito | |
34. | | Autor: Riley, Roger W. Coautor: ; Doren, Carlton S. Van | |
35. | | Autor: Ahmed, Zafar U. | |
36. | | Autor: Clauser, Onorio | |
37. | | Autor: Vogel, Horand M. | |
38. | | | |
39. | | Autor: Ladeiras, João | |
40. | | Autor: Hamilton, George | |