1. On the sensitivity of the methane fermentation of calcium acetate towards some toxi substances;Bannink;Antonie van Leeuwenhoek,1951
2. Una nuova sintesi degli alcooli aril-alifatici;Beets;Riv. ital. essenze, profumi, piante offic. olii vegetali, saponi,1950
3. Speculations on the biogenesis of terpenes and related compounds;Beets;Am. Perfumer Essent. Oil Rev.,1950
4. Le role du chimiste de recherches dans l'industrie de la parfumerie;Beets;Ind. parfum.,1951
5. The numerical evaluation of odour. I. The olfactory panel. Perfumery Essent;Beets;Oil Record,1951