International Mineralogical Association. General Meeting, Bŭlgarska akademi︠i︡a na naukite, Mincheva-Stefanova, Ĭ., & Bonev, I. (1986). Kristallokhimi︠i︡a mineralov: Materialy XIII Kongressa Mezhdunarodnoĭ mineralogicheskoĭ asso︠t︡sia︠t︡sii MMA, Varna, 19-25 sent︠i︡abr︠i︡a 1982. Izd-vo Bolgarskoĭ akademii nauk.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)International Mineralogical Association. General Meeting, Bŭlgarska akademi︠i︡a na naukite, Ĭordanka Mincheva-Stefanova, و I. Bonev. Kristallokhimi︠i︡a Mineralov: Materialy XIII Kongressa Mezhdunarodnoĭ Mineralogicheskoĭ Asso︠t︡sia︠t︡sii MMA, Varna, 19-25 Sent︠i︡abr︠i︡a 1982. Sofi︠i︡a: Izd-vo Bolgarskoĭ akademii nauk, 1986.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)International Mineralogical Association. General Meeting, et al. Kristallokhimi︠i︡a Mineralov: Materialy XIII Kongressa Mezhdunarodnoĭ Mineralogicheskoĭ Asso︠t︡sia︠t︡sii MMA, Varna, 19-25 Sent︠i︡abr︠i︡a 1982. Izd-vo Bolgarskoĭ akademii nauk, 1986.