Question:
Who was the head of Bremerhaven in Mar, 1982?

Context:
 Bodo Selge is the head of the government of Bremerhaven from Jan, 1958 to Jan, 1978. 
 Helmut Andreas Koch is the head of the government of Bremerhaven from May, 1945 to Jan, 1946. 
 Jörg Schulz is the head of the government of Bremerhaven from Jan, 1999 to Jan, 2011. 
 Melf Grantz is the head of the government of Bremerhaven from Jan, 2011 to Dec, 2022. 
 Hermann Gullasch is the head of the government of Bremerhaven from Jan, 1948 to Jan, 1957. 
 Karl Willms is the head of the government of Bremerhaven from Jan, 1983 to Jan, 1995. 
 Manfred Richter is the head of the government of Bremerhaven from Jan, 1995 to Jan, 1999. 
 Werner Lenz is the head of the government of Bremerhaven from Jan, 1978 to Jan, 1983.

Answer:
Werner Lenz