@article {30,
	title = {Cross-beam atomic collision experiment between ultra-low-energy antiprotons and a supersonic gas jet},
	journal = {Hyperfine Interactions},
	volume = {194},
	year = {2009},
	pages = {37-43},
	keywords = {Cross-beam atomic collision, Supersonic~gas~jet, Ultra-low-energy antiprotons},
	issn = {0304-3843},
	doi = {10.1007/s10751-009-0027-4},
	url = {http://dx.doi.org/10.1007/s10751-009-0027-4},
	author = {Torii, H.A. and Nagata, Y. and Toyoda, H. and Imao, H. and Kuroda, N. and Varentsov, V.L. and Yamazaki, Y.}
}
@article {15,
	title = {Cooling by Spontaneous Decay of Highly Excited Antihydrogen Atoms in Magnetic Traps},
	journal = {Physical Review LettersPhys. Rev. Lett.},
	volume = {97},
	year = {2006},
	month = {2006/11/22/},
	pages = {213001 -},
	url = {http://link.aps.org/doi/10.1103/PhysRevLett.97.213001},
	author = {Pohl, T. and Sadeghpour, H. R. and Nagata, Y. and Yamazaki, Y.}
}
