SOFIA (Bulgaria), March 9 (SeeNews) - Bulgaria's SLS Realty REIT [BUL:ERQ] said on Monday that local company Specialized Logistic Systems (SLS) [BUL:2SLA] has sold 58,603 shares in the REIT at a weighted average price of 4.80 levs ($2.80/2.45 euro) apiece.Â