@article{Druzhinin:1986dk, author = "Druzhinin, V. P. and others", title = "{Investigation of the Reaction $e^+ e^- \to \eta \pi^+ \pi^-$ in the Energy Range Up to 1.4-{GeV}}", doi = "10.1016/0370-2693(86)91140-8", journal = "Phys. Lett. B", volume = "174", pages = "115--117", year = "1986" }