FIRSOV, Lev Vasilevich <br/><br/>
Ogerki istorii srednevekoviyh krepostey yujnogo berega Kriyma 

 - 1st 
 - Novosibirsk  Russian Acad. Science  1990 
<br/><br/> NS 
<br/><br/><label>ISBN: </label>5 02 029013 0 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Crimea--Antiquities<br/>Fortification--History, Ancient<br/>Middle Ages