Literary sources:
Encyclopedia Sofia, BAS, Trud Publishing House
"My hometown of Sofia", author Raina Kostentseva
"Sofia in the long past", author Magdalina Stancheva
"The Forgotten Lonely People" / Unknown Sofia Stories /, author Iskra Tsenkova
"Bohemian Sofia". / Stories from the Yellow Pavers /, authors Victor Topalov; Nikol Valcheva and others.
"101 detours in Sofia" author Ivan Mihalev
"Sofia Street Oborishte", author Alexander Zlatarski
Stolitsa.bg
Blog Old Sofia
Wikipedia
Sofia University "St. Kliment Ohridski"
Sofia University "St. Kliment Ohridski"
Wikipedia
ISofia
trafficnews.bg
In the footsteps of
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Bulgarian monuments
Stolitsa.bg
literatours
peika.bg
Building of the year
objects;
Eco-Community Foundation
National Gallery
opoznay.bg
Galena's corner
altersofia
Luximmo
Wikipedia
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Epicenter
The Red House
National Gallery
The girls from the city
trafficnews
Traveler's Club
g8Cinema
Art house with the Dolls Museum
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Newspaper Builder
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University Library
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Gradored
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Astronomical Observatory
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BNR
Agrozona
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URBO
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Objects
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The girls from the city
Objects
Shiroka laka
Bakhus
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The magic of water
Opoznay
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