Titlebook: Homotopy Equivalences of 3-Manifolds with Boundaries; Klaus Johannson Book 1979 Springer-Verlag Berlin Heidelberg 1979 Boundaries.Homotopi

Allure

1383-5130 tween the environmental risks of heavy metals andthe societal causes of the risks. Economic models, substance flowmodels and environmental fate and risk assessment models have beenintegrated into a single analytical framework that has been used totrace and understand the routes by which four heavy m