Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Okumura M. and Yamanaka Y.,DESCRIPTION OF BOSE-EINSTEIN CONDENSATION IN A HARMONIC POTENTIAL BY QUANTUM FIELD THEORY,Soryushiron Kenkyu Electronics,03711838,Soryushiron Kenkyu Editorial Office,2000,100,5,E110-E113,https://cir.nii.ac.jp/crid/1390282679045313792,https://doi.org/10.24532/soken.100.5_e110