MOSCOW, July 30 - RAPSI. The publisher of Perfect 10 men's magazine has asked the court to summon Yandex CEO for questioning in the action launched by the magazine against Yandex N.V. in a Californian court, according to court records made available to the Russian Legal Information Agency (RAPSI/rapsinews.com).

Perfect 10, a U.S. erotic photo publisher and the owner of an adult site, filed a complaint against Yandex in late March over copyright law violation. Perfect 10 maintains that the yandex.com, yandex.ru, yandex.st, yandex.net websites registered by Yandex N.V have published pictures belonging to Perfect 10's core business.

The defendant filed a motion to dismiss the complaint as the court has no personal jurisdiction over Yandex. The defendant also attached a motion filed by Yandex N.V. board member Yelena Ivaschentseva in support of Yandex's motion. She holds that Yandex N.V. was founded in the Netherlands and has no assets or businesses in California.

However, the file mentions Yandex Inc. and Russian-based Yandex LLC as the defendant's subsidiaries registered in Delaware in the United States. The defendant has allegedly done some business in the United States in the past, but transferred their business to Yandex Inc. several years ago.

Yandex maintains that less than 0.4 percent of its total annual revenue comes from its United States business. In this regard, the defendant considers the case in the California court to be unfounded. Besides, any decision passed by the U.S. court will contradict Dutch and Russian laws, Ivaschentseva said.

Quinn Emanuel Urquhart & Sullivan legal firm, which represents the Yandex group, also maintains that the plaintiff's claims are groundless. It stressed that Perfect 10 has been widely involved in copyright litigations for the past 10 years and should be considered "a copyright troll". The pornography publisher has reportedly filed nearly 30 claims against 40 companies, accusing them of inflicting serious damage to its business.

Yandex is Russia's biggest Internet company. Its net profit jumped 53 percent in the first quarter of 2012 to 1.258 billion rubles ($41.4 million) year on year based on US GAAP.