@article{10_4064_fm_158_2_125_146,
     author = {Teresa Bigorajska and Henryk Kotlarski and James H. Schmerl},
     title = {On regular interstices and selective types in countable arithmetically saturated models of {Peano} {Arithmetic}},
     journal = {Fundamenta Mathematicae},
     pages = {125--146},
     publisher = {mathdoc},
     volume = {158},
     number = {2},
     year = {1998},
     doi = {10.4064/fm-158-2-125-146},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-158-2-125-146/}
}