Bubbles in the Linoleum

[UmpJJ]

We have sheet linoleum in the kitchen that is "bubbling" - coming loose from the subfloor and forming unsightly bubbles throughout the floor. Is there a way to fix this without removing the linoleum? I don't know if it's glued to the floor uniformly or in select spots.
Anyone?

UmpJJ

[asa]

If there was once glue under the area, you may be able to reactivate it with heat. I've been able to use a syringe with needle and blow dryer before. I poked the needle into the bubble, then used the blow dryer all around the area as I pulled up on the plunger to suck the air out. I got it good and hot and then removed the needle. Then I piled on heavy stuff and left it for a few days.