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10 “... lightness' as a tribute to a writer he loves: Italo Calvino. The reference at the beginning...”

11 “... and health questions real people have asked top science writer and San Diego Union-Tribune columnist Sherry...”

12 “...The purpose of this Special Issue is to pay tribute to the significant contributions made...”

13 “.... Applications of Activated Sludge Models has been prepared in celebration of 25 years of ASM1 and in tribute...”

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15 “...Brazil's Federal Court of Accounts, the Tribunal de Contas da União (TCU), is seeking to go beyond...”

16 “... réduire de 40 % ce lourd tribut. Or, des milliards de dollars sont actuellement dépensés pour développer...”