Petropoulou, E. (2010). Some recent advances in partial difference equations. Bentham e Books.
Chicago-viite (17. p.)Petropoulou, Eugenia. Some Recent Advances in Partial Difference Equations. [S.l.]: Bentham e Books, 2010.
MLA-viite (9. p.)Petropoulou, Eugenia. Some Recent Advances in Partial Difference Equations. Bentham e Books, 2010.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.