BibSlavKon: 3 hits for Zarev, P.

The Bibliography of International Congresses of Slavists (1929-2018) was converted from thirteen printed volumes into a database in cooperation with the Slavonic Library in Prague (Slovanská knihovna Praha) and contains 8550 records. Since 2008 the Bibliography appear only in electronic form and will be updated in five-year interval according to the next Congresses of Slavists. The further information can be found here. The overview of the classification can be found: here.

Your search for Zarev, P. provides 3 hits
1	K voprosu o strukture literaturnogo processa Zarev, P. - Slavjanska filologija (1983), 71-80
2	Estetičeskijat ideal - jadro na chudožestvenija metod : (kăm văprosa za săvremennite tvorčeski tărsenija pri socialističeskija realizăm) Zarev, P. - Slavjanska filologija : materiali za V Meždunaroden kongres na slavistite (1963), 49-68
3	Načalo i nacionalni osobenosti na socialističeskija realizăm Zarev, P. - Slavističen sbornik : po slučaj IV meždunaroden kongres na slavistite v Moskve (1958), 171-211

Bibliography of International Congresses of Slavists (BibSlavKon)

K voprosu o strukture literaturnogo processa

Estetičeskijat ideal - jadro na chudožestvenija metod : (kăm văprosa za săvremennite tvorčeski tărsenija pri socialističeskija realizăm)

Načalo i nacionalni osobenosti na socialističeskija realizăm