1. Molecular visualization of pectin and DNA by ruthenium red;Hanke;Biopolymers,1975
2. Properties of polygalacturonate and cell cohesion in apple fruit cortical tissue;Knee;Phytochemistry,1978
3. Kraus , E.J. 1916 Variation of internal structure of apple varieties Oregon Agricultural College Experiment Station Bulletin , 135, Corvallis, Oregon
4. Objective measurement of graininess in apple sauce;Lanza;Proceedings of the American Society for Horticultural Science,1967
5. Pectin ultrastructure. I. Pectate elementary fibrils;Leeper;Journal of Texture Studies,1973