conf/pods/82 Nathan Goodman Oded Shmueli Transforming Cyclic Schemas into Trees. 49-54 1982 PODS db/conf/pods/pods82.html#GoodmanS82a http://doi.acm.org/10.1145/588111.588120 db/conf/pods/GoodmanS82a.html journals/anthology/cd1-3:PODS82/P049.PDF journals/anthology/dvd1:text/1-3/PODS82/P049.PDF journals/jacm/BernsteinC81 ... conf/stoc/BeeriFMMUY81 journals/siamcomp/BernsteinG81 journals/tods/FaginMU82 journals/siamcomp/Gavril72 ... ... journals/jacm/GoodmanS83 ... journals/jcss/Hull83 journals/tods/MaierU83 conf/pods/MaierU82 journals/tods/WongY76 conf/stoc/Yannakakis78 ...