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Domestication trials on bumblebees
Valle, Otto; Aaltonen, Marjatta - 1969
Persistent link: https://www.econbiz.de/10001478467
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Tärkeimmät Viljalajikkeemme ja niiden viljelyalueet v. 1955 : summary: The most important varieties of cereals grown in Finland and their growing areas in 1955
Valle, Otto; Paatela, Juhani; Saksa, P. J. - 1958
Persistent link: https://www.econbiz.de/10001478470
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Mehiläisrotujen Työskentely puna-apilalla siitepölytutkimuksen perusteella
Sarisalo, Marjatta; Valle, Otto - 1969
Persistent link: https://www.econbiz.de/10000307817
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Pollination and seed setting in tetraploid red clover in Finland ; [1]
Valle, Otto - 1960
Persistent link: https://www.econbiz.de/10001732812
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Über den Kleesamenbau in Finnland und in den Baltischen Staaten
Valle, Otto - In: Bericht über den ... Kongress des Agronomenverbandes … 7 (1939), pp. 155-162
Persistent link: https://www.econbiz.de/10002936569