In his paper abstract on constructive realism , Wallner describes it as follows :
It was developed in the late 1950s by Jane Loevinger and elaborated in the 1980s by Friedrich Wallner ( also Fritz Wallner ) in Vienna .
In Friedrich Wallner 's paper abstract on constructive realism Fritz Wallner Friedrich Wallner describes it as follows :
It was developed in the late 1950s by Jane Loevinger and elaborated in the 1980s by Friedrich Wallner ( also Fritz Wallner ) in Vienna .