求助外文文献3篇，十分谢谢！

1.On interacting bumps of semi-classical states of nonlinear Schrödinger equationsXiaosong Kang and Juncheng Wei
Adv. Differential Equations Volume 5, Number 7-9 (2000), 899-928.
http://projecteuclid.org/DPubS?service=UI&version=1.0&verb=Display&handle=euclid.ade/1356651291


2.On a singularly perturbed elliptic equation
YanYan Li
Adv. Differential Equations Volume 2, Number 6 (1997), 955-980.
http://projecteuclid.org/DPubS?service=UI&version=1.0&verb=Display&handle=euclid.ade/1366638679



3.Existence of Semiclassical Bound States of NonlinearSchrödinger Equations with Potentials of the Class (V)a
Yong-Geun Oh
Communications in Partial Differential EquationsVolume 13, Issue 12, 1988
http://www.tandfonline.com/doi/abs/10.1080/03605308808820585?journalCode=lpde20#.UfoOJ7KcHmA

帮你下载了一篇，见附件。