"Document Types." . . "Physics Of Elementary Particles And Fields." . . "Scattering." . . "Structure Functions." . . "Angular Momentum." . . "Functions." . . "Interactions." . . "Progress Report." . . "Lepton-baryon Interactions." . . "Particle Interactions." . . . . . . . . . "This report describes polarized lepton-nucleus scattering; and muonium research."@en . . . "(Medium energy elementary particle physics)"@en . "[Medium energy elementary particle physics]. Technical progress report"@en . . . . . . . . . . . . . . . . . . . "Lepton-nucleon Interactions." . . "Spin." . . "Particle Properties." . . "Muonium." . . "Lepton-hadron Interactions." . . . .