@article{KJM_2006_29_a9,
     author = {Vladimir Risti\'c},
     title = {$L_{ACP}^k>$ logic and completeness theorem},
     journal = {Kragujevac Journal of Mathematics},
     pages = {99 },
     publisher = {mathdoc},
     volume = {29},
     year = {2006},
     zbl = {1121.03030},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/KJM_2006_29_a9/}
}