February 20, 1979

E Eur has begun desperate search for new sources of oil and natural gas to make up for loss of Iranian oil and expected cutbacks in Soviet deliveries; oil is more immediate problem than natural gas; conservation measures taken to cope with problem noted (M)

Article describes relationship between Mayor Koch and his $1-a-yr aide Dan Wolf; Wolf, member of Koch's inner circle of advisers, describes his role as one of encouraging Koch 'to be himself; Koch calls Wolf 'extraordinary source of strength'; their illus (M)

Article on Mother-Child Home Program, which was developed by Phyllis Levenstein to help low-income women promote cognitive development of their pre-school children through skillful use of toys; third graders who participated in program in Freeport, LI, have been shown to be performing significantly better in both reading and arithmetic than other children from low-income background; illus (M)1

Chinese forces reptdly plan to pull back after having pushed 6 mi into Vietnamese territory; withdrawal of some troops might already have begun; Western analysts say Chinese feel they have accomplished stated objective of punishing Vietnamese for Cambodian invasion and have shown no sign of pushing south to Hanoi; Asst State Sec Richard C Holbrooke repts main Vietnamese mil force is still near Hanoi and has not entered conflict, which is being fought between Chinese regular forces and Vietnamese para-mil units; heavy fighting and casualties reptd in border areas; map (M)

Jane Brody article on recent studies challenging old theories on obesity; new research challenges long-standing notions that most people who are fat get that way because of their genes, or because they are lazy, greedy, weak-willed or have low metabolism; says studies show many of these characteristics are consequences of eating too much and weighing too much in soc oriented toward slimness; work of several researchers noted; drawings (L)