Monteiro, António PintoGomes, Júlio2013-07-312013-07-311998MONTEIRO, António Pinto; GOMES, Júlio - Rebus sic stantibus – hardship clauses in Portuguese law. European Review of Private Law. ISSN 0928-9801. Vol. 3 (1998), p. 319-3320928-9801http://hdl.handle.net/10400.14/12363engjournal article10.54648/204597