@article{SEDP_1976-1977____A1_0,
     author = {Andersson, K. G. and Melrose, R.},
     title = {Propagation of singularities along gliding rays},
     journal = {S\'eminaire \'Equations aux d\'eriv\'ees partielles (Polytechnique) dit aussi "S\'eminaire Goulaouic-Schwartz"},
     note = {talk:1},
     pages = {1--5},
     publisher = {Ecole Polytechnique, Centre de Math\'ematiques},
     year = {1976-1977},
     mrnumber = {467047},
     zbl = {0358.35048},
     language = {en},
     url = {http://www.numdam.org/item/SEDP_1976-1977____A1_0/}
}