Gennady P. Manchenko 
Handbook of Detection of Enzymes on Electrophoretic Gels [PDF ebook] 

Still widely used as gene markers, isozymes detected by zymogram techniques have proven valuable in a range of other biological applications over the last few years. Along with these new applications, many new techniques have also emerged. Yet more than eight years since the Handbook of Detection of Enzymes on Electrophoretic Gels was first publish