Hachette isn’t the only big publisher that Amazon(s AMZN) is playing hardball with — across the Atlantic, the retailer is also engaged in contract negotiations with media group Bonnier over its German business. Amazon has been delaying Bonnier book shipments in Germany, and it’s believed that the company is seeking larger discounts (for itself, not for readers) on ebooks from Bonnier publishers. On Tuesday, the German Publishers and Booksellers Association (Börsenverein) announced that it filed a complaint against Amazon with the Federal Cartel Office, asking it to investigate.

“Amazon is putting significant, coercion-like pressure on Bonnier to get the publisher to concede unjustified advantages during its ongoing negotiations,” the Association says in its 22-page complaint.* It pegs Amazon’s share of the print and ebook market at around 70 percent.

The Association notes that so far, Amazon is limiting its shipment delays to older Bonnier titles, rather than “new releases and bestsellers,” but that…