Just how final are today's quantum structures? - Paul Busch (Soft Comput., 2001)

Approximate joint measurements of qubit observables. - Paul Busch; Teiko Heinosaari (Quantum Inf. Comput., 2008)

Effect. - Paul Busch (Compendium of Quantum Physics, 2009)

Heisenberg Uncertainty Relation (Indeterminacy Relations). - Paul Busch; Brigitte Falkenburg (Compendium of Quantum Physics, 2009)

Which-Way or Welcher-Weg-Experiments. - Paul Busch; Gregg S. Jaeger (Compendium of Quantum Physics, 2009)

Lüders Rule. - Paul Busch; Pekka Lahti (Compendium of Quantum Physics, 2009)

Measurement Theory. - Paul Busch; Pekka Lahti (Compendium of Quantum Physics, 2009)

Observable. - Paul Busch; Pekka Lahti (Compendium of Quantum Physics, 2009)

Coexistence of qubit effects. - Paul Busch; Heinz-Jürgen Schmidt (Quantum Inf. Process., 2010)