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Global change and the record of the past / Les changements à l'échelle du globe et le témoignage du passé; Luckman, B H; in,
GEOS, Summer 1989 / GEOS, été 1989. Geos vol. 18, no. 3, 1989 p. 1-8,
https://doi.org/10.4095/127534 
Open Access (GSC
Cont.# 18389)