1. The year 1968 relates to the publication The Low Temperature Biology of Foods J. Hawthorn E. Rolfe Pergamon Press
2. van den Berg , L. Physico-chemical changes in foods arising during freezing and subsequent storage
3. Christopherson , J. Effect of freezing and thawing on the microbial population of foodstuffs
4. Connell , J. The effect of freezing and frozen storage on the proteins of fish muscle
5. Davies , J.D. Aspects of freezing important in the freeze drying of living cells