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Перспективна пилотируема транспортна система (Bulgarian Wikipedia)

Analysis of information sources in references of the Wikipedia article "Перспективна пилотируема транспортна система" in Bulgarian language version.

refsWebsite
Global rank Bulgarian rank
1space.com
936th place
642nd place
1russianspaceweb.com
6,023rd place
7,259th place
1danielmarin.blogspot.com
low place
low place
1redorbit.com
7,503rd place
7,714th place

danielmarin.blogspot.com (Global: low place; Bulgarian: low place)

  • Marin, Daniel. New details on the Russian spacecraft PTK-NP // 5 септември 2011. Посетен на 14 август 2012. (7th image from the top) – The volume of the recovery vehicle – 33 m3 (Грешка в записа: Неразпознат езиков код es and russian)

redorbit.com (Global: 7,503rd place; Bulgarian: 7,714th place)

russianspaceweb.com (Global: 6,023rd place; Bulgarian: 7,259th place)

  • Zak, Anatoly. Soyuz ACTS History // 2008-07. Посетен на 14 август 2012. (на английски)

space.com (Global: 936th place; Bulgarian: 642nd place)