http://jalibrary.i2p/meta?fname=archives/books/epubs/Michael%20A.%20Smith/Much%20Sound%20and%20Fury%2C%20or%20the%20New%20Jim%20Crow__%20The%20Twenty-First%20Century%27s%20Restrictive%20New%20Voting%20L%20%28736979%29/Much%20Sound%20and%20Fury%2C%20or%20the%20New%20Jim%20Crow__%20-%20Michael%20A.%20Smith.epub
offers a scholarly analysis, not of the intent but rather the impact of these laws. Beginning with a historical overview of the expanding and contracting right to vote, particularly regarding its impact on African Americans, subsequent chapters use quantitative analysis to analyze the impact of identification requirement laws, proof-of-citizenship requirements, felony disenfranchisement, and gerrymandering.