On the Ultra-soft component of the cosmic radiation

On the evolution of the main-sequence stars

On the grassmann and clifford algebras I

Perspectivas energéticas brasileiras

Physical Applications of the Resolvent Operators (I)

Quantum Kinematics and Geometry

Quantum Theory and Geometry

Quantum Theory of the Point Electron I

Quantum mechanics and geometry (Part. III)

Quantum mechanics and geometry: Part. II