Bilan M.I., Burdin K.S., Grigoriev G.V., Evdokimova M.V., Zubkov A.Yu., Ivashkina I.V., Kamnev A.N., Kamneva M.A., Kochurov B.I., Markova S.A., Yakovlev A.S. English-Russian / Russian-English Environmental Science Dictionary Year 2018 330
Kamnev A.N., Kamneva M.A., Grigoriev G.V., Kunz B.F., Putnam L., Pankenier S., Haig K., Scherr B., Koetzsch R. The Conceptual Framework for Proactive and Integrative Environmental Education and Upbringing (PIEEU) Year 2017 42
