Table schema:
CREATE TABLE table_name_61 (area_km_2 INTEGER, member_state VARCHAR, population_in_millions VARCHAR)

Question: What is the lowest area km2 of the member state of the Czech Republic and has a population in millions lesss than 10.3?
SQL: SELECT MIN(area_km_2) FROM table_name_61 WHERE member_state = "czech republic" AND population_in_millions < 10.3