@article{BSL19_1_Chagrov_Zakharyashchev,
author = {Alexander V. CHAGROV and Michael V. ZAKHARYASHCHEV},
title = {On Halld{\'e}n-Completebess of Intermediate and Modal Logics},
journal = {Bulletin of the Section of Logic},
volume = {19},
number = {1},
year = {1990},
pages = {21--24}
}