AGE Platform Europe through the Eustacea Project (A European Strategy to combat elder abuse) gathered best practices related to the rights of older people in need of long-term care and assistance. All of them have been made available here.
The WeDO Project (A European Partnership for the Well-Being and the Dignity of Older People) also gathers good practices not only related to elder abuse but also to quality in long-term care. They are listed here.