Authors: Moosa, MA Bollen, B

Citation: Ma. Moosa et B. Bollen, Is there a maturity effect in the price of the S&P 500 futures contract?, APPL ECON L, 8(11), 2001, pp. 693-695

Authors: Bollen, B Lewis, V

Citation: B. Bollen et V. Lewis, Pyosalpinx presenting as an ectopic pregnancy, GYNAEC ENDO, 9(1), 2000, pp. 71-72

Authors: Bollen, B Padwick, M

Citation: B. Bollen et M. Padwick, Delayed delivery of second twin after chorioamnionitis and abortion of first twin at 21 weeks gestation, EUR J OB GY, 93(1), 2000, pp. 109-110