The first comprehensive guide to the aquatic plants of the regionBeneath the surface of bodies of freshwater-springs, streams, rivers, ponds and lakes-there is a world of plants of great variety and beauty, a realm that is often poorly known and understood.  Meer

In dem Buch werden die physikalischen Eigenschaften der Gase beschrieben und die unterschiedlichen Messverfahren und Sensorprinzipien zur Analyse von Gasgemischen dargestellt.  Meer

The book describes the physical properties of gases and describes the different measuring methods and sensor principles for the analysis of gas mixtures.  Meer