@article{Barbarino:1972jtf, author = "Barbarino, G. and others", title = "{Observation of a broad peak in the production of four charged pions by e+ e- collisions around 1.6 gev}", doi = "10.1007/BF02767397", journal = "Lett. Nuovo Cim.", volume = "3", pages = "689--692", year = "1972", note = "[Erratum: Lett.Nuovo Cim. 4, 200 (1972)]" }