Here we are at once confronted by a whole series of problems. (religion-online.org)
Thus we can conclude that «there has arisen a new series of problems, a series as numerous as can be, calling for efforts of analysis and synthesis» (5). (faith.org.uk)
The bank has a mounting series of problems stemming from the news that since 2011 employees had improperly opened accounts for customers. (businessinsider.com)