Marlena Zaremba

Marlena Zaremba

Marlena Zaremba
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Organic Chemistry -- from Eric Weisstein's World of Chemistry    Great review for organic chemistry

Organic Chemistry Functional groups represented using condensed (novice or beginner) representations. From Eric Weisstein's World of Chemistry

The Pieniny National Park, Een memorabele vlot-tocht over de Dunajec. Rafts on Dunajec River, Pieniny Mountains.

The Pieniny National Park, Een memorabele vlot-tocht over de Dunajec. Rafts on Dunajec River, Pieniny Mountains, Slovakian / Polish border.