@article {jackel1981effect,
	title = {Effect of ponderomotive forces on wave dispersion and second-harmonic light emissions in laser-produced plasmas},
	journal = {Physical Review A},
	volume = {24},
	number = {3},
	year = {1981},
	pages = {1601},
	publisher = {APS},
	author = {Jackel, S and Eliezer, S and Zigler, A}
}
