"Superconductividad." . . "Mecánica ondulatoria." . . "Partículas (Física nuclear)" . . "Conductividad eléctrica." . . "Mécanique ondulatoire." . . . "Two Lectures" . "Two Lectures ... 1. The Present Situation in the Theory of Elementary Particles. 2. Electron Theory of Superconductivity"@en . "Two Lectures"@en . . "Two lectures . : 1"@en . . . . . . "Two lectures. 1. The present situation in the theory of elementary particles. 2. Electron theory of superconductivity" . . . . . . . . . . . . "Two lectures"@en . "Two lectures by W. Heisenberg : 1. The Present Situation in the Theory of Elementary Particles. 2. Electron Theory of Superconductivity" . "Two lectures" . "Two lectures. 1: The present situation in the theory of elementary particles. 2: Electron theory of superconductivity"@en . . "Two lectures : The present situation in the theory of elementary particles, Electron theory of superconductivity" . "Two lectures : the present situation in the theory of elementary particles; 2 Electron theory of superconductivity"@en . . . . . . . . . "Two lectures : 1: The present situation in the theory of elementary particles : 2: Electron theory of superconductivity" . . . . . . . . . . . . . . "Conduction électrique." . .