1. Studio sulla efficienza delle draghe turbosoffianti e loro effetto sulle comunità bentoniche;vaccarella;Biol Mar Medit,1998
2. A method of establishing groups of equal amplitude in plant sociology based on similarity of species and its application to analyses of the vegetation on Danish commons;sorensen;Kongelige Danske Videnskabernes Selskab,1948
3. Developments in Environmental Modeling;legendre;Numerical Ecology,2012