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You might also look at Tonny Springer's Invariant Theory https://books.google.ie/books/about/Invariant_Theory.html?id=S0sPAQAAMAAJ&redir_esc=yhttps://books.google.com/books/about/Invariant_Theory.html?id=S0sPAQAAMAAJ&redir_esc=y
You might also look at Tonny Springer's Invariant Theory https://books.google.ie/books/about/Invariant_Theory.html?id=S0sPAQAAMAAJ&redir_esc=y
You might also look at Tonny Springer's Invariant Theory https://books.google.com/books/about/Invariant_Theory.html?id=S0sPAQAAMAAJ&redir_esc=y
