@article{10_4064_ap79_3_4,
     author = {Ruyun Ma},
     title = {Existence of positive solutions
  for second order $m$-point boundary value problems},
     journal = {Annales Polonici Mathematici},
     pages = {265--276},
     publisher = {mathdoc},
     volume = {79},
     number = {3},
     year = {2002},
     doi = {10.4064/ap79-3-4},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap79-3-4/}
}