Table:
text: Gastão Elias
Doubles (8)
Doubles (8)
Edition Round Date_ Partnering Against Surface Opponents W_L Result_
2008 Davis Cup Europe/Africa Group II SF 19–21 September 2008 Leonardo Tavares Ukraine Hard Sergei Bubka Sergiy Stakhovsky Loss 3–6, 2–6, 4–6
2012 Davis Cup Europe/Africa Group I 2R 6–8 April 2012 João Sousa Israel Clay Andy Ram Jonathan Erlich Loss 4–6, 4–6, 3–6
2012 Davis Cup Europe/Africa Group I GI PO 14–16 September 2012 João Sousa Slovakia Hard Michal Mertiňák Filip Polášek Loss 5–7, 6–4, 6–7 (5–7) , 3–6
2013 Davis Cup Europe/Africa Group II 2R 5–7 April 2013 Rui Machado Lithuania Clay Lukas Mugevicius Mantas Bugailiskis Win 6-3, 6-0, 6-2

Question: Besides Gastão Elias, who are all Slovakia's Doubles 8 opponents?