1. Some observations on Arctic planktonic foraminifera;Be´;Cushman Found. Foraminiferal Res. Contrib.,1960
2. Aspects of calcification in planktonic foraminifera (Sarcodina);Be´,1963
3. Calcification in a living planktonic foraminifer, Globigerinoides sacculifer (Brady);Be´;Lamont-Doherty Geol., Obs. Contrib.,1970
4. Shell growth and structure of planktonic foraminifera;Be´;Science,1964
5. Distribution and ecology of living planktonic foraminifera in surface waters of the Atlantic and Indian Oceans;Be´,1971