@book{eprints4977,
           title = {Lecture notes. Introduction to non-linear analysis for radioecologists.},
       publisher = {Odessa State Environmental University},
         address = {TES},
            year = {2014},
             url = {http://eprints.library.odeku.edu.ua/id/eprint/4977/},
          author = {Gerasymov, O. I.},
            isbn = {978-617-7054-51-0}
}