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Continue to ChatCanonical Involution on Double Jet Bundles - https://avesis.yildiz.edu.tr/yayin/1341ab86-cb00-42df-9900-11f3dd9ee93c/canonical-involution-on-double-jet-bundles
Canonical Involution on Double Jet Bundles - https://avesis.yildiz.edu.tr/yayin/1341ab86-cb00-42df-9900-11f3dd9ee93c/canonical-involution-on-double-jet-bundles