Classification of the relict forest communities of Palla’s Black Pine (Pinus nigra subsp. pallasiana) in Bulgaria
Tzonev, Rossen, Dimitrov, Marius, Gussev, Chavdar, Vulchev, Vladimir, Nikolov, Ivailo
New data on the ecological peculiarities and the distribution in Bulgaria of the vulnerable habitat F3.1d Balkan-Anatolian submontane genistoid scrub from the European Red List of Habitats
Kunev, Georgi, Tzonev, Rossen
Saxifrago Ferdinandi-Coburgi-Seslerietum Actarovii - A New Association from the Subalpine Belt of the Slavianka (Orvilos) MTS. (Bulgaria)
Karakiev, Todor, Tzonev, Rossen
Bromo Moesiacae-Stipetum Epilosae - a New Association from the Relict Mountain Steppe Vegetation in South-Western Bulgaria
Todorova, Salza, Tzonev, Rossen
The Halophytic Vegetation in South-East Bulgaria and Along the Black Sea Coast
Tzonev, Rossen, Lysenko, Tatiana, Gusev, Chavdar, Zhelev, Petar
Relationships between vegetation of Macedonian pine (Pinus peuce Griseb.) and different types of soils on which it develops
Mandžukovski, Dejan, Teofilovski, Aco, Andreevski, Marjan, Ćušterevska, Renata, Tzonev, Rossen, Dimitrov, Marius