Summary
Hertlein's thesis is discussed and criticized on points where apparently significance is attached to results which require stronger statistical proofs.
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van der Bijl, W. The constant temperature-sum as a basis for forecasting flowering date. Geofisica Pura e Applicata 34, 246–252 (1956). https://doi.org/10.1007/BF02122831
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DOI: https://doi.org/10.1007/BF02122831