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Portail d'information géographique

Résultats de la recherche (72 résultats)

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  • Palaeoecological investigations of lake Shabla-Ezeretz in North-eastern Bulgaria
  • Narastvane na naselenieto na okrâjnite gradove v NR Bâlgariia. (Increase of the population of the district centers in Bulgaria)
  • Relations between Yugoslavia and Bulgaria, 1967-1981
  • Klimatat na planinskite rajoni v Balgarija. Struktura i genezis The climate of Bulgarias mountainous zones. Its structure and genesis
  • Klasifikaciia na APK-proizvoditeli na carevica za zârno v Juzniia centralen ikonomiceski raion. (Classification of the agrarian-industrial complexes in South Central Bulgaria as corn-grain producers)
  • The natural conditions in the South-Central economic region of Bulgaria require that fodder crop areas are irrigated. The correlation and regression analysis show that the interdependence between the share of irrigated lands and the corn-grain
  • Geografiia na otdiha i turizma v Bâlgariia-problemi na teritorialnata organizaciia.. (Geography of leisure and tourism in Bulgaria problems of space organization)
  • An assessment and synthesis of the territorial investigations related to recreation and tourism in Bulgaria. The factors generating recreational needs, as well the recreational territorial system in the country and its subsystems (resources
  • The ecological policy of the People's Republic of Bulgaria in Bulgarian and American perspectives on regional analysis.
  • The ecologization of material production in Bulgaria and the tasks of geography in Bulgarian and American perspectives on regional analysis.
  • Statisticeska struktura na valeanoto pole v Balgarija Statistical structure of the precipitation field in Bulgaria
  • Barhu statisticeskata strutura na poleto na deficita na vlaknostta na vezduka v Balgarija On the statistical structure of the field of air humidity deficit in Bulgaria
  • Za razvitieto na zivotnovadstvoto v Balgariia (On the development of stock-breeding in Bulgaria)
  • Prilozenie na niakoi taksonomicni metodi za razkrivane ravnisteto na razvitie na okrazite v Balgariia (Application of some taxonomic methods in studying the level of district development in Bulgaria)
  • Temp na narastvane na gradovete v Balgariia za perioda 1946-1982 g (Rate of increase of the urban population in Bulgaria for the period 1946-1982)
  • Teritorialni osobenosti i tendencii na izvanbracnite razdaniia v Balgariia (Peculiarities in the territorial distribution and trends of illegitimate births in Bulgaria)
  • Dinamika na naselenieto na selata v Balgariia s nad 3000 dusi (Changes in the population of the villages above 3000 inhabitants in Bulgaria)
  • Demografsko razvitie i osobenosti na srednite gradove v Balgariia (Demogeographical development and peculiarities of the average-size towns in Bulgaria)
  • Geografski osobenosti na rajdaemostta i reproduktivnoto povedenie na naselenieto v NR Bâlgariia. (Geographical peculiarities of birth-rate and population reproductive performance in Bulgaria)
  • On the evolution of the Stephanian-Permian volcanic activity of the Balkanide folded system in Bulgaria
  • Verhu neotektonskata aktivizacija na razlomnite strukturi v Belgarija On the neotectonic activation of fault structures in Bulgaria
  • Prilozenie na metoda na balovite ocenki na klimaticnite resursi na NR Balgarija s ogled nuzdite na rekreacionnoto delo Application of the method of grade assessment of the climatic resources in the P. R. of Bulgaria with a view to the demands