71. | | Autor: Claveria, Oscar Coautor: ; Monte, Enric Torra, Salvador | |
72. | | Autor: Tianyu, Ying Coautor: ; Jiajiang, Jiang Yongguang, Zhou | |
73. | | Autor: Papamichail, Katerina | |
74. | | Autor: Nonay Almalé, Miguel | |
75. | | Autor: Veiga, Luís | |
76. | | Autor: Almeida, Joaquim Robalo de | |
77. | | Autor: Psarros, Manolis Coautor: ; Pastras, Pantazis | |
78. | | Autor: Vicente, David | |
79. | | Col.autor: WYSE- World Youth Student and Educational Travel Confederation | |
80. | | Autor: Schuckert, Markus Coautor: ; Xianwei, Liu Law, Rob | |