Sj. Qian, A STEERING PROCEDURE FOR THE FAST VERTEX FITTING METHOD, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 350(3), 1994, pp. 618-620
The fast vertex fitting method [P. Billoir and S. Qian, Nucl. Instr. a
nd Meth. A 311 (1992) 139] has been enhanced by a steering procedure w
hich performs the track selection to insure the vertex fitting quality
. Meanwhile, a sign error in a formula in the above publication has be
en corrected.