Geodesic
Co může způsobit sedm miliard lidí?
Rozhledy matematicko-fyzikální, Tome 85 (2010) no. 2, pp. 13-20.

Voir la notice de l'article provenant de la source Czech Digital Mathematics Library

Around the year 1810, there were about one billion people on the Earth and nature was in balance. There were no heat power-stations and no transport by heat engines. Today, there are 7 billion people on the Earth, who increase the quantity of carbon dioxide by their activity and who contribute to global increase of temperature. There are models of situations on secondary school level to obtain concrete idea about consequence of the global increase of temperature. 
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     title = {Co m\r{u}\v{z}e zp\r{u}sobit sedm miliard lid{\'\i}?},
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Volf, Ivo; Volf, Petr. Co může způsobit sedm miliard lidí?. Rozhledy matematicko-fyzikální, Tome 85 (2010) no. 2, pp. 13-20. http://geodesic.mathdoc.fr/item/RMF_2010__85_2_a3/