Reference

Schneinder, U. Eggenreich, Bernhart, K. J. Pfeiffer, K. Rieger, Rudolf Steiner, Emanuel Silvester Trummer, Karl Crailsheim (1993): Determination of haemolymph volume of winter honey bees using innulin un polyethylen glycol. – Mitt.dt.Ges.alg.angew.Ent. – 8: 761 - 764.

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