Claire Cameron, ‘The Rise of the City Bee’, https://daily.jstor.org/rise-city-bee-urbanites-built-21st-century-apiculture/.
555
20 996 кв. метров.
556
1,62 кв. километра.
557
Sam Jones, ‘Can Mexico City’s Roof Gardens Help the Metropolis Shrug Off its Smog?’, Guardian, 24/4/2014; Ajuntament de Barcelona, Barcelona Green Infrastructure and Biodiversity Plan 2020, https://ajuntament.barcelona.cat/ecologiaurbana/sites/default/files/Barcelona%20green%20infrastructure%20and%20biodiversity%20plan%202020.pdf; Grace Chua, ‘How Singapore MakesBiodiversity an Important Part of Urban Life’, Citylab, https://www.citylab.com/environment/2015/01/how-singapore-makes-biodiversity-an-important-part-of-urban-life/384799/.
