Ecological Questions. An International Journal on Controversial Problems of Ecology. 34 (1/2023)

- Ecological Questions. An International Journal on Controversial Problems of Ecology. 15/2011
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- Ecological Questions. An International Journal on Controversial Problems of Ecology. 18/2013
- Ecological Questions. An International Journal on Controversial Problems of Ecology. 17/2013: Remote sensing and geographical information system for environmental studies
- Ecological Questions. An International Journal on Controversial Problems of Ecology. 13/2010
- Ecological Questions. An International Journal on Controversial Problems of Ecology. 12/2010: Treats, management, conservation and structural changes of heathlands in Toruń Basin and other sites of Europe
- Ecological Questions. An International Journal on Controversial Problems of Ecology. 14/2011: Ecology of Halophytes and Saline Habitats
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- Ecological Questions. An International Journal on Controversial Problems of Ecology. 34 (1/2023)