The system was also the subject of very early theoretical investigations into galaxy interactions.

This book is a theoretical investigation on the long-term evolution of industrial systems.

The area became a focus for his theoretical investigations.

Fusion power has been under intense theoretical and experimental investigation since the 1950s.

Scott Russell spent some time making practical and theoretical investigations of these waves.

It is based on many empirical studies and theoretical investigations especially of Kauffman 1993.

Sant Mat is a practical and not a theoretical investigation.

During the 1980's he carries out theoretical and empirical investigations of collective identities.

It can also be applied as an oscillator during theoretical investigations and predictions.

Beginning in the 1970s and 80s, a series of practical and theoretical investigations began to overcome these limitations.