If you are referring to Lexonomy from an academic publication, it is recommended that you cite these papers (the first paper is a main general reference).

JAKUBÍČEK, Miloš, KOVÁŘ, Vojtěch, MĚCHURA, Michal and Adam RAMBOUSEK. Using NVH as a Backbone Format in the Lexonomy Dictionary Editor. In A. Horák, P. Rychlý, A. Rambousek. Proceedings of the Sixteenth Workshop on Recent Advances in Slavonic Natural Languages Processing, RASLAN 2022. Brno: Tribun EU, 2022. p. 55-61. ISSN 2336-4289.

MĚCHURA, Michal. Introducing Lexonomy: an open-source dictionary writing and publishing system. In I. Kosem, C. Tiberius, M. Jakubíček, J. Kallas, S. Krek, V. Baisa. Electronic lexicography in the 21st century: Proceedings of eLex 2017 conference. Leiden: Lexical Computing, 2017. p. 662-679. ISSN 2533-5626.

RAMBOUSEK, Adam, Miloš JAKUBÍČEK and Iztok KOSEM. New developments in Lexonomy. In Kosem, I., Cukr, M., Jakubíček, M., Kallas, J., Krek, S. & Tiberius, C. Electronic lexicography in the 21st century. Proceedings of the eLex 2021 conference. Brno: Lexical Computing CZ, s.r.o., 2021. p. 455-462. ISSN 2533-5626.

MĚCHURA, Michal. Shareable subentries in Lexonomy as a solution to the problem of multiword item placement. In Jaka Čibej, Vojko Gorjanc, Iztok Kosem and Simon Krek. Proceedings of the XVIII EURALEX International Congress: Lexicography in Global Contexts. Lublaň: Ljubljana University Press, 2018. p. 223-232. ISBN 978-961-06-0097-8.

JAKUBÍČEK, Miloš, Michal MĚCHURA, Vojtěch KOVÁŘ and Pavel RYCHLÝ. Practical Post-Editing Lexicography with Lexonomy and Sketch Engine. In XVIII EURALEX International Congress: Lexicography in Global Contexts. 2018.