Innovative publications on environmental science, ecology, water quality, self-purification; available in libraries of Spain, Italy, Denmark, Belgium, Netherlands.
http://5bio5.blogspot.com/2013/07/innovative-publications-on_542.html
See the web sites/links:
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Denmark. In library.
Some aspects of water filtering activity of filter-feeders
http://5bio5.blogspot.com/2013/06/denmark-in-library-some-aspects-of.html
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