Fred Eckhardt in
A Treatise on Lager Beers, published in 1969, set out the view that Dortmunder is a distinctive enough pale lager to be classed as a separate beer style.
Michael Jackson and Roger Protz continued the trend, although with a certain faint heart, uneasy at pinning down exactly the distinctive nature of the beer. Brewers outside of Germany who brew beers they term Dortmunder will tend to brew a pale lager with a soft, rounded character. ==See also==