Krishnan، R.؛ Sugi, M. (31 أغسطس 2003). "Pacific decadal oscillation and variability of the Indian summer monsoon rainfall". Climate Dynamics. ج. 21 ع. 3–4: 233–242. Bibcode:2003ClDy...21..233K. DOI:10.1007/s00382-003-0330-8.
Krishnan، R.؛ Sugi, M. (31 أغسطس 2003). "Pacific decadal oscillation and variability of the Indian summer monsoon rainfall". Climate Dynamics. ج. 21 ع. 3–4: 233–242. Bibcode:2003ClDy...21..233K. DOI:10.1007/s00382-003-0330-8.