Graham R.L., Grotschel M., Lovasz L. — Handbook of combinatorics (vol. 2) | 313, 389, 390, 397, 419, 518, 520, 563, 603, 888, 1258, 1835, 1837, 1834, 1838, 1839, 1861, 2066, see Acharya, B.D., see Berge, C., see Bjoerner, A., see Bland, R., see Bland, R.G., see Duchet, P., see Fournier, J.-C., see Hamidoune, Y.O. |