CREATE TABLE table_name_30 (attendance INTEGER, round VARCHAR(255), home VARCHAR(255), date VARCHAR(255))
What is the lowest attendance on Monday, November 10 when linköpings hc was the home team and there were more than 18 rounds?
    
SQL: SELECT MIN(attendance) FROM table_name_30 WHERE home = "linköpings hc" AND date = "monday, november 10" AND round > 18