The Dons managed to register their first league win of the season when they beat Ross County 4-0 at home last Sunday.
Barry Robson’s side managed to follow it up with yet another victory over the same opponents three days later in the Scottish League Cup, thus booking a place in the semi-final.
However, Harper believes that one swallow does not make a summer and the Dons will need to follow those good performances up with yet another impressive showing against Glasgow giants Rangers.
Reflecting on Aberdeen’s 2-1 Europa Conference League loss against Eintracht Frankfurt, Harper wrote in his column for the Press and Journal: “Up until last week the Dons were struggling to find any form until impressing in the narrow 2-1 Europa Conference League loss to Frankfurt in Germany.
“That appears to have kick-started the season.
“However, it is too early to say if the Dons have completely turned a corner.
“One swallow doesn’t make a summer but a win or draw at Ibrox would provide further proof the Dons are on track.”
Aberdeen are still in the relegation zone and are one point adrift of safety.
