Stem screw$ (all stems)
2 papers:
CASE-2012-NishimuraKM- Pathway selection mechanism of a screw drive in-pipe robot in T-branches (TN, AK, SM), pp. 612–617.
ICPR-v3-2006-ZhaoL06a- Hand-Eye Calibration Based on Screw Motions (ZZ, YL), pp. 1022–1026.
CASE-2012-NishimuraKM
ICPR-v3-2006-ZhaoL06a