@book{23549,
	author = {Petrie, Christopher J.S. },
	title = {Extensional viscosity: A critical discussion},
	url = {https://drive.google.com/file/d/1uTI0zAkm2GD5IxlSxDJYKHwvH1RtfvwY/view?usp=drivesdk}
}