http://www.paw-rescue.org/PAW/PETTIP...ip_Marking.php PAW rescue article on Marking Why Do Dogs Mark Furniture as Territorial Spots? Paw Rescue: Marking: Understading it, Stopping it PAW rescue article on Marking PAW rescue article on Marking http://www.paw-rescue.org/PAW/PETTIPS/DogTip_Marking.php Paw Rescue: Dog Tip: Marking - Understanding It, Stopping It Paw Rescue: Marcação: Entendendo e parando [em inglês] Dog Rescue: Marking - Understanding It, Stopping It Paw Rescue: Dog Tip: Marking - Understanding It, Stopping It