Borussia Dortmund have put plans to paper on a summer move for Everton loanee Romelu Lukaku, [football] direct news understands.After an official announcement earlier this week saw Hertha Berlin striker Adrian Ramos complete his move to Borussia Dortmund this summer, the Bundesliga club are ready to find the Colombian a strike partner.And, [FDN] understand that plans have been made by Jurgen Klopp and his backroom team to make a summer move for Chelsea striker Romelu Lukaku.Lukaku is currently on loan with Everton and has been producing some impressive performances under Spanish boss Roberto Martinez.His 13 Premier League goals have seen the 20-year-old linked with the likes of Tottenham Hotspur, Atletico Madrid, Inter Milan and others but it is Dortmund who have made plans to beat their competitors.Lukaku will return to Stamford Bridge in June but it is expected that Blues boss Jose Mourinho will opt to sell the Belgian striker rather than keep him.