The Dons saw Wilbraham complete a surprise move to Championship high-fliers Norwich and with Jermaine Easter also on loan at Swansea, Robinson has been left short of firepower.
He said: "Everyone at the club is under pressure to perform, and we pay our strikers to score goals.
"We will be sitting down with the chairman to discuss what we can do about bringing people in.
"Plenty of clubs are having a hard time of it lately and we're no exception.
"The chairman has been around for long enough to know what we need."