Turkish Journal of Physics
General wavefunction is expanded as power series of a variable which describes internal dynamics of particle, to show that it contains excited states of Schrödinger's Zitterbewegung.
GÖNEN, SELAHATTİN and HAVARE, ALİ (2002) "Schrödinger Quantization and Excited States of Zitterbewegung," Turkish Journal of Physics: Vol. 26: No. 1, Article 2. Available at: https://journals.tubitak.gov.tr/physics/vol26/iss1/2