1
Structure and approximation in physical theories /
Book
Other Personal Name(s): ...Hartkämper, A....
2
Structure and Approximation in Physical Theories [E-Book] /
Other Personal Name(s): ...Hartkämper, A....

Full text 
3
Foundations of quantum mechanics and ordered linear spaces : Advanced Study Institute, Marburg 1973 /
Book
Other Personal Name(s): ...Hartkämper, A....
4
Foundations of Quantum Mechanics and Ordered Linear Spaces [E-Book] : Advanced Study Institute Marburg 1973 /