id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
ap-1356	Lanczewski, T.	The Velocity Tensor and the Momentum Tensor	2011	5	.pdf	application/pdf	2084	121	75	Keywords: relativistic classical mechanics, velocity tensor, momentum tensor. Then matrix (19) takes the form Π(β) = γ2 ( Π00 Π01	cache/ap-1356.pdf	txt/ap-1356.txt