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1
Catalogue of the geomagnetic data recorded at PAG observatory 1956-2015
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Catalogue of the geomagnetic data recorded at PAG observatory 1956-2015

Trifonova, Petya ; Metodiev, Metodi ; Buchvarov, Ivan

National Institute of Geophysics, Geodesy and Geography, Bulgarian Academy of Sciences 2019

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2
DETERMINATION OF URANIUM AND THORIUM BY MEANS OF PHOTONUCLEAR METHODS IN SOME YUGOSLAV ROCKS
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Artigo
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DETERMINATION OF URANIUM AND THORIUM BY MEANS OF PHOTONUCLEAR METHODS IN SOME YUGOSLAV ROCKS

Pavlovic, B.V. ; Petrovic, D.V.

Rad. Zavoda Fiz., 5: 51-8(1965), 1965-01

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3
Seasonal distribution of $sup 137$Cs in rainfall, compared with the general artificial $beta$-radioactivity of the fallout in Sofia, Pleven, and Varna in 1970--1971
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Artigo
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Seasonal distribution of $sup 137$Cs in rainfall, compared with the general artificial $beta$-radioactivity of the fallout in Sofia, Pleven, and Varna in 1970--1971

Georgieva, L. ; Dimchev, T.

Khidrol. Meteorol., v. 23, no. 1, pp. 19-29, 1974-01

Bulgaria

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4
Determination of the isotope-exchangeable phosphorus in certain soil types
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Artigo
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Determination of the isotope-exchangeable phosphorus in certain soil types

Ivanov, P. ; Stanev, A.

Pochvozn. Agrokhim., v. 7, no. 4, pp. 13-24, 1972-01

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5
Measuring soil moisture with the aid of isotopes
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Artigo
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Measuring soil moisture with the aid of isotopes

Petrov, P.

Pochvozn. Agrokhim., v. 7, no. 3, pp. 3-8, 1972-01

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6
Intensity and spectral analysis of gamma radiation from natural radionuclides in mountain soils
Material Type:
Report
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Intensity and spectral analysis of gamma radiation from natural radionuclides in mountain soils

Dimchev, T. ; Rajkov, L.

Bulgaria 1972

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7
VARIATIONS OF ARTIFICIAL RADIOACTIVITY IN THE SURFACE AIR LAYER
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Artigo
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VARIATIONS OF ARTIFICIAL RADIOACTIVITY IN THE SURFACE AIR LAYER

Manolov, L. ; Teneva, M.

Izv. Inst. Khidrol. Meteorol. Bulg. Akad. Nauk, 10: 107-25(1967), 1967-01

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8
Elimination of $sup 90$Sr and $sup 137$Cs in sheep milk
Material Type:
Report
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Elimination of $sup 90$Sr and $sup 137$Cs in sheep milk

Vrigazov, A. ; Marinov, V.

Bulgaria 1972

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9
Radiation factor in the polymetal mines of the Gorubso mining and dressing enterprise at Lyki and its hygienic significance
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Artigo
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Radiation factor in the polymetal mines of the Gorubso mining and dressing enterprise at Lyki and its hygienic significance

Akrabova, A. ; Vyrbanov, P. ; Raicheva, V.

Rudodobiv Met. (Sofia), v. 27, no. 7-8, pp. 19-23, 1972-01

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10
Evaluation of the applicability of some methods for the measurement of the short lived decay products of $sup 222$Rn by means of a new $alpha$-spectrometric extrapolation method
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Artigo
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Evaluation of the applicability of some methods for the measurement of the short lived decay products of $sup 222$Rn by means of a new $alpha$-spectrometric extrapolation method

Uzunov, I. ; Gumnerova, L. ; Kritidis, P. ; Minev, L. ; Apostolova, M.

God. Sofii. Univ., Fiz. Fak., v. 65, pp. 425-442, 1970-01

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