TY - RPRT TI - Null-strut calculus. II. Dynamics. AU - A Kheyfets AU - NJ LaFave AU - WA Miller PY - 1990 DO - 10.1103/physrevd.41.3637 UR - https://pubmed.ncbi.nlm.nih.gov/10012308/ ID - 10012308 ER -