SU Xiao-hong
,
ZHENG Lian-cun
. Existence of Positive Solutions to a Class of Non-linear Boundary Value Problems[J]. Journal of Hebei University(Natural Science Edition), 2005
, 25(1)
: 5
-8
.
DOI: 10.3969/j.issn.1000-1565.2005.01.002
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