@article{10_21136_MB_2014_144139,
     author = {Domoshnitsky, Alexander},
     title = {Positivity of {Green's} matrix of nonlocal boundary value problems},
     journal = {Mathematica Bohemica},
     pages = {621--638},
     publisher = {mathdoc},
     volume = {139},
     number = {4},
     year = {2014},
     doi = {10.21136/MB.2014.144139},
     mrnumber = {3306852},
     zbl = {06433686},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/MB.2014.144139/}
}