A. Widmer

'MIKADO' AND 'DRILLING' (TRIPLET) - TWO NOVEL TRAINING SYSTEMS FOR SUSTAINABLE HIGH QUALITY APPLE AND PEAR PRODUCTION

A. Widmer, C. Krebs, A. Widmer, 1997 .

Sustainable and competitive fruit production: demands on research and practise.

A. Widmer, M. Kellerhals, P. Rusterholz, 2000 .