“Cats like to scratch on rigid substance they will sink their claws into,” suggests “Obviously their organic favourite substrate is wood,” states Dr. Стефан Василев ВАСИЛЕВ ИФ-БАН, с-я „Естетика” Естетика С. Йотов, проф. Х. П. Тодоров, доц. С. Минева; становища – проф. А. Стаматов, проф. К. Янакиев, доц. М. Николчина, https://williaml133gge4.blogtov.com/profile