Zhigulevskoe, Zhigulyovskoye, or in Ukrainian Zhigulivske. In Russian: жигулёвское. The style originated in the Soviet days. Then, breweries did not have the ability to pasteurize, so there were breweries in every city and town, and beer had a shelf life of just a few days. It was typically served live, from tanks. Brewers had a book of recipes that they could choose from. Zhigulevskoe was the most popular of these recipes, because it was very forgiving in terms of its ingredient specs, and ingredients were often in short supply. It has continued to be popular in the ex-USSR countries, even 25 years later.