1. Alexander, G. D., G. S. Young, and D. V. Ledvina, 1993: Principal component analysis of vertical profiles of Q1 and Q2 in the tropics. Mon. Wea. Rev., 121, 535–548.
2. Berson, F. A., 1961: Circulation and energy balance in a tropical monsoon. Tellus, 13, 472–485.
3. Berson, F. A., and A. J. Troup, 1961: On the angular momentum balance in the equatorial trough zone of the eastern hemisphere. Tellus, 13, 66–78.
4. Braak, C., 1919: Atmospheric variations of short and long duration in the Malay archipelago and neighbouring regions, and the possibility to forecast them. Verhandelingen, No. 5, Koninklijk Magnetisch en Meteorologisch Observatorium te Batavia, 57 pp.
5. Braak, C., 1929: The climate of the Netherland Indies, Volumes I and II. Verhandelingen, No. 8, Koninklijk Magnetisch en Meteorologisch Observatorium to Batavia, 1602 pp.