Well done for catching her in time, hopefully she will improve daily, the lambs keep on with little and often feeds, a heat lamp would be good. Keep them with the ewe, by them trying to feed it will help stimulate her milk if she has any, has she any? You may have to completely bottle feed or may find she has enough for maybe 1 or 2 of them, after 24'hours they can go onto lamlac, again little and often until they are strong enough to take 4-5 bigger feeds, good luck keep us posted.