Jupp, Andrew R The 2-phosphaethynolate anion: a convenient synthesis and [2+2] cycloaddition chemistry. [electronic resource] - Angewandte Chemie (International ed. in English) Sep 2013 - 10064-7 p. digital Publication Type: Journal Article ISSN: 1521-3773 Standard No.: 10.1002/anie.201305235 doi