Hubertus Fischer

Little Ice Age clearly recorded in northern Greenland ice cores

D. Wagenbach, F. Wilhelms, J. Kipfstuhl, 1998 .

Holocene carbon-cycle dynamics based on CO2 trapped in ice at Taylor Dome, Antarctica

Martin Wahlen, Thomas F. Stocker, Fortunat Joos, 1999, Nature.

Simulating low frequency changes in atmospheric CO 2 during the last 740 000 years

H. Fischer, P. Köhler, P. Köhler, 2006 .

Ice core records of atmospheric CO2 around the last three glacial terminations

Smith, M. Wahlen, B. Deck, 1999, Science.