2 citations to https://www.mathnet.ru/rus/adm632

1. S. Kozerenko, “More on linear and metric tree maps”, Opusc. Math., 41:1 (2021), 55–70        
2. S. Kozerenko, “Linear and metric maps on trees via Markov graphs”, Comment. Math. Univ. Carol., 59:2 (2018), 173–187