No not really, as its more something I've read about on/off over the years, in a variety of articles, and I am by no means an expert. The wikipedia article on

No not really, as its more something I've read about on/off over the years, in a variety of articles, and I am by no means an expert. The wikipedia article on the topic does have some decent links to specific examples from reputable sources and is probably a good place to start - https://en.wikipedia.org/wiki/Parallel_construction https://en.wikipedia.org/wiki/Parallel_construction