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Wolfgang Babel @ 75: A tribute

Edited by: Ms. Dagmar Fiedler
Dear Professor Babel,

This special issue is dedicated to you on the occasion of your 75th birthday.

The article collection is short and personal being a gift from some of your former colleagues, who are now working in the novel field of bioenergy and sustainability, in honour of your special birthday.

May not only you but also all readers enjoy this special edition!

Kindly accept our warmest congratulations on your birthday and our sincere best wishes for health and happiness in the coming year as well as many thanks for your kind and fruitful cooperation over so many years, in particular throughout all stages of concept preparation for Energy, Sustainability and Society.

Happy Birthday!

Dagmar Fiedler
on behalf of the publisher and all the contributing authors

  1. Review

    Comparative review of foam formation in biogas plants and ruminant bloat

    This review gives an overview of the current knowledge concerning the problem of foam formation in the process of anaerobic digestion in biogas plants that utilize renewable resources or biogenic waste materia...

    Lucie Moeller, Kati Goersch, Juergen Neuhaus, Andreas Zehnsdorf and Roland Arno Mueller

    Energy, Sustainability and Society 2012 2:12

    Published on: 16 July 2012