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Experiment to measure the effect of pasturing, fire and cutting on wood and grass production in a tree savanna of North Cameroon ; Un essai sylvo-pastoral au Nord-Cameroun. Mise en...
Bruxelles et ses campagnes: croissance économique et actions aristocratiques, haut Moyen Age - XIIIe siècle ; Brussels and its country: economic growth and aristocratic contributio...
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